1: (chiefly British) of or appropriate to the upper classes especially in language use n 1: a nitrogen-containing base found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine [sy...

1: a submersible warship usually armed with torpedoes [syn: {submarine}, {pigboat}, {sub}]

1: a rented car; "she picked up a hire car at the airport and drove to her hotel" [syn: {car rental}, {hire car}, {rent-a-car}, {self-drive}, {you-drive}]

1: shaped in the form of the letter U

1: complete reversal of direction of travel

1: the airforce of the United States of America; defends the United States through control and exploitation of air and space [syn: {United States Air Force}, {US Air Force}, {USAF}]

1: the army of the United States of America; organizes and trains soldiers for land warfare [syn: {United States Army}, {US Army}, {USA}]

1: a division of the United States Army that is specially trained for guerilla fighting [syn: {Special Forces}, {United States Army Special Forces}]

1: an agency of the Department of Transportation responsible for patrolling shores and facilitating nautical commerce [syn: {United States Coast Guard}, {US Coast Guard}]

1: a consolidation and codification by subject matter of the general and permanent laws of the United States; is prepared and published by a unit of the United States House of Representatives [syn: {U...

1: the executive and legislative and judicial branches of the federal government of the United States [syn: {United States government}, {United States}, {U.S. government}, {US Government}] 2: North Am...

1: a defense laboratory of the Criminal Investigation Command; the Army's primary forensic laboratory in support of criminal intelligence [syn: {United States Army Criminal Investigation Laboratory}, ...

1: the legislature of the United States government [syn: {Congress}, {United States Congress}, {US Congress}]

1: the executive and legislative and judicial branches of the federal government of the United States [syn: {United States government}, {United States}, {US Government}, {U.S.}]

1: the lower legislative house of the United States Congress [syn: {United States House of Representatives}, {U.S. House of Representatives}, {US House of Representatives}, {House of Representatives},...

1: the lower legislative house of the United States Congress [syn: {United States House of Representatives}, {US House of Representatives}, {House of Representatives}, {U.S. House}, {US House}]

1: the mint that manufactures and distributes United States coins for circulation through Federal Reserve Banks; processes gold and silver bullion [syn: {United States Mint}, {US Mint}]

1: the world's largest medical library [syn: {National Library of Medicine}, {United States National Library of Medicine}]

1: territorial waters included within a distance of 12 nautical miles of the coasts of the United States and its territories; "ships operating in United States waters must adhere to United States laws...

1: North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in...

1: an impure mixture of uranium oxides obtained during the processing of uranium ore [syn: {yellowcake}]

1: medium-sized tree-dwelling monkey of the Amazon basin; only New World monkey with a short tail

1: a person with great powers and abilities [syn: {demigod}, {superman}]

{ubermensch}

1: the state of existing and being localized in space

1: any of several quinones that function as electron-carrying coenzymes [syn: {coenzyme Q}]

1: being present everywhere at once [syn: {omnipresent}]

1: the state of being everywhere at once (or seeming to be everywhere at once) [syn: {ubiquity}, {omnipresence}]

1: the state of being everywhere at once (or seeming to be everywhere at once) [syn: {ubiquitousness}, {omnipresence}]

1: a virtually extinct Caucasian language spoken exclusively in Turkey

1: fiddler crabs [syn: {genus Uca}]

1: the major Protestant paramilitary group in Northern Ireland; responsible for bombing the homes of Catholics and for criminal racketeering and selling drugs [syn: {Ulster Defense Association}]

1: mammary gland of bovids (cows and sheep and goats) [syn: {bag}]

1: a member of the Finno-Ugric-speaking people living in eastern European Russia [syn: {Votyak}] 2: the Finnic language spoken by the Votyak people [syn: {Votyak}]

1: gauge consisting of an instrument to measure the quantity of precipitation [syn: {rain gauge}, {rain gage}, {pluviometer}]

1: a city in the European part of Russia

1: an (apparently) flying object whose nature is unknown; especially those considered to have extraterrestrial origins [syn: {unidentified flying object}, {flying saucer}]

1: a landlocked republic in eastern Africa; achieved independence from the United Kingdom in 1962 [syn: {Republic of Uganda}]

1: of or relating to or characteristic of Uganda or its people; "Ugandan game parks" n : a native or inhabitant of Uganda

1: monetary unit in Uganda

1: the basic unit of money in Uganda; equal to 100 cents [syn: {shilling}]

1: an extinct Semitic language of northern Syria

1: large sweet juicy hybrid between tangerine and grapefruit having a thick wrinkled skin [syn: {tangelo}, {ugli fruit}] [also: {uglies} (pl)]

1: hybrid between grapefruit and mandarin orange; cultivated especially in Florida [syn: {tangelo}, {tangelo tree}, {Citrus tangelo}] 2: large sweet juicy hybrid between tangerine and grapefruit havin...

{ugly}

{ugli}

{ugly}

{uglify}

1: make ugly [ant: {beautify}] [also: {uglified}]

1: qualities that do not give pleasure to the senses [ant: {beauty}]

1: displeasing to the senses and morally revolting; "an ugly face"; "ugly furniture"; "war is ugly" [ant: {beautiful}] 2: deficient in beauty; "ugly gray slums" 3: inclined to anger or bad feelings wi...

1: an ugly or unpromising child who grows into a beautiful or worthy person

1: the pope who sponsored the introduction of the modern calendar (1572-1585) [syn: {Gregory}, {Gregory XIII}]

1: one of the two branches of the Finno-Ugric family of languages; spoken in Hungary and northwestern Siberia [syn: {Ugric}]

1: one of the two branches of the Finno-Ugric family of languages; spoken in Hungary and northwestern Siberia [syn: {Ugrian}]

1: 300 to 3000 megahertz [syn: {ultrahigh frequency}]

1: German romantic poet (1787-1862) [syn: {Johann Ludwig Uhland}]

1: a member of a people who speak Uighur and live in Xinjiang and adjacent areas [syn: {Uigur}, {Uygur}] 2: the Turkic language spoken by approximately 7,000,000 Uighur people in extreme northwestern ...

1: a member of a people who speak Uighur and live in Xinjiang and adjacent areas [syn: {Uighur}, {Uygur}] 2: the Turkic language spoken by approximately 7,000,000 Uighur people in extreme northwestern...

{uighur}

1: a variety of dinocerate [syn: {dinoceras}]

1: an extinct family of Dinocerata [syn: {family Uintatheriidae}]

1: type genus of the Uintatheriidae; extinct large herbivorous ungulates somewhat resembling elephants; from the Eocene in Wyoming [syn: {genus Uintatherium}]

1: a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland [syn: {United Kingdom}, {Great Britain}, {GB}, {Britain}, {Un...

1: an edict of the Russian tsar

1: a small guitar having four strings [syn: {ukulele}]

1: a republic in southeastern Europe; formerly a European soviet; the center of the original Russian state which came into existence in the ninth century [syn: {Ukrayina}]

1: of or relating to or characteristic of Ukraine or its people or culture n : the Slavic language spoken in the Ukraine

1: a native or inhabitant of the Ukraine

1: monetary unit in Ukraine

1: a republic in southeastern Europe; formerly a European soviet; the center of the original Russian state which came into existence in the ninth century [syn: {Ukraine}]

1: a small guitar having four strings [syn: {uke}]

1: the capital and largest city of Mongolia [syn: {Ulan Bator}, {Urga}, {Kulun}, {capital of Mongolia}]

1: pain in the gums

1: the body of mullahs (Muslim scholars trained in Islam and Islamic law) who are the interpreters of Islam's sciences and doctrines and laws and the chief guarantors of continuity in the spiritual an...

1: the capital and largest city of Mongolia [syn: {Ulaanbaatar}, {Urga}, {Kulun}, {capital of Mongolia}]

1: Russian ballet dancer (1910-1998) [syn: {Galina Ulanova}, {Galina Sergeevna Ulanova}]

1: recession of the gums

1: a circumscribed inflammatory and often suppurating lesion on the skin or an internal mucous surface resulting in necrosis of tissue [syn: {ulceration}]

1: a diet of foods that are not irritating; "he ate a bland diet because of his colitis" [syn: {bland diet}]

1: undergo ulceration; "Her stomach ulcerated" 2: affect with an ulcer; "Her stomach was ulcerated"

1: having an ulcer or canker [syn: {cankerous}, {ulcerous}]

1: a circumscribed inflammatory and often suppurating lesion on the skin or an internal mucous surface resulting in necrosis of tissue [syn: {ulcer}] 2: the process of ulcer formation; the process of ...

1: of or relating to or characterized by ulceration; "ulcerative colitis"

1: a serious chronic inflammatory disease of the large intestine and rectum characterized by recurrent episodes of abdominal pain and fever and chills and profuse diarrhea

1: having an ulcer or canker [syn: {cankerous}, {ulcerated}]

1: the body of mullahs (Muslim scholars trained in Islam and Islamic law) who are the interpreters of Islam's sciences and doctrines and laws and the chief guarantors of continuity in the spiritual an...

1: bleeding of the gums

1: genus of Eurasian spiny shrubs: gorse [syn: {genus Ulex}]

1: very spiny and dense evergreen shrub with fragrant golden-yellow flowers; common throughout western Europe [syn: {gorse}, {furze}, {whin}, {Irish gorse}]

1: a Christian believed to be of Cappadocian descent who became bishop of the Visigoths in 341 and translated the Bible from Greek into Gothic; traditionally held to have invented the Gothic alphabet ...

1: a Christian believed to be of Cappadocian descent who became bishop of the Visigoths in 341 and translated the Bible from Greek into Gothic; traditionally held to have invented the Gothic alphabet ...

1: inflammation of the gums

1: (Norse mythology) one of the Aesir known for his beauty and skill with bow and skis; son of Sif and stepson of Thor [syn: {Ullr}]

1: the amount that a container (as a wine bottle or tank) lacks of being full

1: (Norse mythology) one of the Aesir known for his beauty and skill with bow and skis; son of Sif and stepson of Thor [syn: {Ull}]

1: a dicot family of the order Urticales including: genera Ulmus; Celtis; Planera; Trema [syn: {family Ulmaceae}, {elm family}]

1: type genus of family Ulmaceae; deciduous trees having simple serrate leaves; widely distributed in temperate regions [syn: {genus Ulmus}]

1: North American elm having twigs and young branches with prominent corky projections [syn: {winged elm}, {wing elm}]

1: large ornamental tree with graceful gradually spreading branches common in eastern North America [syn: {American elm}, {white elm}, {water elm}, {rock elm}]

1: a variety of the English elm with erect branches and broader leaves [syn: {Jersey elm}, {guernsey elm}, {wheately elm}, {Ulmus sarniensis}, {Ulmus campestris wheatleyi}]

1: a variety of the English elm with erect branches and broader leaves [syn: {Jersey elm}, {guernsey elm}, {wheately elm}, {Ulmus sarniensis}, {Ulmus campestris sarniensis}]

1: European elm with lustrous smooth leaves used as an ornamental [syn: {smooth-leaved elm}, {European field elm}]

1: elm of southern United States and Mexico having spreading pendulous corky branches [syn: {cedar elm}]

1: Eurasian elm often planted as a shade tree [syn: {witch elm}, {wych elm}]

1: any of various hybrid ornamental European shade trees ranging from dwarf to tall [syn: {Dutch elm}]

1: erect vigorous hybrid ornamental [syn: {Huntingdon elm}]

1: Eurasian elm closely resembling the American elm; thrives in a moist environment [syn: {water elm}]

1: small fast-growing tree native to Asia; widely grown as shelterbelts and hedges [syn: {Chinese elm}]

1: broad spreading rough-leaved elm common throughout Europe and planted elsewhere [syn: {English elm}, {European elm}]

1: fast-growing shrubby Asian tree naturalized in United States for shelter or ornament [syn: {Siberian elm}, {Chinese elm}, {dwarf elm}]

1: North American elm having rough leaves that are red when opening; yields a hard wood [syn: {slippery elm}, {red elm}]

1: a variety of the English elm with erect branches and broader leaves [syn: {Jersey elm}, {guernsey elm}, {wheately elm}, {Ulmus campestris sarniensis}, {Ulmus campestris wheatleyi}]

1: autumn-flowering elm of southeastern United States [syn: {September elm}, {red elm}]

1: tall widely distributed elm of eastern North America [syn: {rock elm}]

1: the inner and longer of the two bones of the human forearm [syn: {elbow bone}] [also: {ulnae} (pl)]

{ulna}

1: relating to or near the ulna

1: large artery that branches from the brachial artery to supply the muscles of the forearm and wrist and hand [syn: {arteria ulnaris}]

1: a nerve running along the inner side of the arm and passing near the elbow; supplies intrinsic muscles of the hand and the skin of the medial side of the hand [syn: {cubital nerve}, {nervus ulnaris...

1: any of several veins of the forearm [syn: {vena ulnaris}]

1: Swiss theologian whose sermons began the Reformation in Switzerland (1484-1531) [syn: {Zwingli}, {Huldreich Zwingli}]

1: a historic division of Ireland located in the northeastern part of the island; six of Ulster's nine counties are in Northern Ireland 2: loose long overcoat of heavy fabric; usually belted

1: the major Protestant paramilitary group in Northern Ireland; responsible for bombing the homes of Catholics and for criminal racketeering and selling drugs [syn: {UDA}]

1: in or of the month preceding the present one; "your letter received on the 29th ult" [syn: {ultimo}]

1: lying beyond what is openly revealed or avowed (especially being kept in the background or deliberately concealed); "subterranean motives for murder"; "looked too closely for an ulterior purpose in...

1: the quality of being ulterior; "their conversation was limited to ulteriorities"; "a terrible feeling of ulteriority"; "his stories were too susceptible to ulteriority"

1: in an ulterior manner

1: the geographical region believed by ancient geographers to be the northernmost land in the inhabited world [syn: {Thule}]

1: the state or degree of being ultimate; the final or most extreme in degree or size or time or distance, "the ultimacy of these social values" [syn: {ultimateness}]

{ultimatum}

1: furthest or highest in degree or order; utmost or extreme; "the ultimate achievement"; "the ultimate question"; "man's ultimate destiny"; "the ultimate insult"; "one's ultimate goal in life" [ant: ...

1: a game between two teams whose players try to toss a Frisbee to one another until they cross the opponents goal; possession changes hands when the frisbee is intercepted or touches the ground or go...

1: as the end result of a succession or process; "ultimately he had to give in"; "at long last the winter was over" [syn: {finally}, {in the end}, {at last}, {at long last}] 2: after everything has be...

1: the state or degree of being ultimate; the final or most extreme in degree or size or time or distance, "the ultimacy of these social values" [syn: {ultimacy}]

1: a final peremptory demand [also: {ultimata} (pl)]

1: in or of the month preceding the present one; "your letter received on the 29th ult" [syn: {ult}]

1: (used of opinions and actions) far beyond the norm; "extremist political views"; "radical opinions on education"; "an ultra conservative" [syn: {extremist}, {radical}]

1: beyond the legal power or authority of a person or official or body etc; "an ultra vires contract" [ant: {intra vires}] adv : beyond the scope or in excess of legal power or authority

1: a cephalosporin antibiotic (trade name Ultracef) [syn: {cefadroxil}]

1: centrifugation at very high speeds

1: a high speed centrifuge used to determine the relative molecular masses of large molecules in high polymers and proteins v : subject to the action of an ultracentrigue

1: extremely conservative n : an extreme conservative; an opponent of progress or liberalism [syn: {reactionary}, {extreme right-winger}]

1: 300 to 3000 megahertz [syn: {UHF}]

1: of a brilliant pure blue to purplish blue color n 1: blue pigment made of powdered lapis lazuli [syn: {ultramarine blue}] 2: vivid blue to purple-blue

1: blue pigment made of powdered lapis lazuli [syn: {ultramarine}]

1: light microscope that uses scattered light to show particles too small to see with ordinary microscopes [syn: {dark-field microscope}]

1: too small to be seen without an ultramicroscope

1: extremely modern; "Dadism and ultramodern art"

1: of or relating to ultramonatism 2: on or relating to or characteristic of the region or peoples beyond the Alps from Italy (or north of the Alps); "ancient transalpine Gaul was an area northwest of...

1: (Roman Catholic Church) the policy that the absolute authority of the church should be vested in the pope

1: fanatical patriotism [syn: {chauvinism}, {jingoism}, {superpatriotism}]

1: fanatically patriotic [syn: {chauvinistic}, {flag-waving(a)}, {jingoistic}, {nationalistic}, {superpatriotic}]

1: having frequencies above those of audible sound [syn: {supersonic}]

1: by ultrasonic means; "the kidney stones were removed ultrasonically"

1: using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs [syn: {sonography}, {ultrasound}...

1: very high frequency sound; used in ultrasonography 2: using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth o...

1: a synthetic suede cloth

1: having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible spectrum at its violet end; "ultraviolet radiation"; "an ultraviolet lamp" n : radiation lying i...

1: radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays [syn: {ultraviolet}, {ultraviolet radiation}, {ultraviolet light}, {UV}]

1: any source of illumination that emits ultraviolet radiation [syn: {ultraviolet source}]

1: radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays [syn: {ultraviolet}, {ultraviolet radiation}, {ultraviolet illumination}, {UV}]

1: radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays [syn: {ultraviolet}, {ultraviolet light}, {ultraviolet illumination}, {UV}]

1: any source of illumination that emits ultraviolet radiation [syn: {ultraviolet lamp}]

1: the spectrum of ultraviolet radiation

1: a mountain in the Kunlun range in China (25,340 feet high) [syn: {Ulugh Muztagh}]

1: a mountain in the Kunlun range in China (25,340 feet high) [syn: {Ulugh Muz Tagh}]

1: emit long loud cries; "wail in self-pity"; "howl with sorrow" [syn: {howl}, {wail}, {roar}, {yawl}]

1: a long loud emotional utterance; "he gave a howl of pain"; "howls of laughter"; "their howling had no effect" [syn: {howl}, {howling}]

1: type genus of the family Ulvaceae; green seaweed having a thallus two cells thick: sea lettuce [syn: {genus Ulva}]

1: thin flat or tubular green algae [syn: {family Ulvaceae}, {sea-lettuce family}]

1: an order of protoctista [syn: {order Ulvales}]

1: alternative name for the class Chlorophyceae in some classifications [syn: {class Ulvophyceae}]

1: Roman misspelling for Odysseus

1: 18th President of the United States; commander of the Union armies in the American Civil War (1822-1885) [syn: {Grant}, {Ulysses S. Grant}, {Ulysses Simpson Grant}, {Hiram Ulysses Grant}, {Presiden...

1: 18th President of the United States; commander of the Union armies in the American Civil War (1822-1885) [syn: {Grant}, {Ulysses Grant}, {Ulysses Simpson Grant}, {Hiram Ulysses Grant}, {President G...

1: 18th President of the United States; commander of the Union armies in the American Civil War (1822-1885) [syn: {Grant}, {Ulysses Grant}, {Ulysses S. Grant}, {Hiram Ulysses Grant}, {President Grant}...

1: a benevolent aspect of Devi; `splendor' 2: fringe-toed lizard [syn: {genus Uma}]

1: with long pointed scales around toes; of deserts of United States and Mexico [syn: {fringe-toed lizard}]

1: a little known Palestinian group responsible for bombings and for killing Israelis; seeks to defeat Israel and liberate southern Lebanon, Palestine, and Golan Heights [syn: {Forces of Umar Al-Mukht...

1: the first dynasty of Arab caliphs whose capital was Damascus [syn: {Ommiad}, {Omayyad}]

1: flat-topped or rounded inflorescence characteristic of the family Umbelliferae in which the individual flower stalks arise from about the same point; youngest flowers are at the center

1: resembling an umbel in form [syn: {umbellate}]

1: plants having umbels or corymbs of uniovulate flowers; includes the Umbelliferae (chiefly herbs) and Cornaceae (chiefly trees or shrubs) [syn: {order Umbellales}]

1: bearing or consisting of or resembling umbels [syn: {umbellate}]

1: bearing or consisting of or resembling umbels [syn: {umbellar}] 2: resembling an umbel in form [syn: {umbel-like}]

1: any of numerous aromatic herbs of the family Umbelliferae [syn: {umbelliferous plant}]

1: plants having flowers in umbels: parsley; carrot; anise; caraway; celery; dill [syn: {family Umbelliferae}, {Apiaceae}, {family Apiaceae}, {carrot family}]

1: relating to or belonging to plants of the family Umbelliferae

1: any of numerous aromatic herbs of the family Umbelliferae [syn: {umbellifer}]

1: resembling or in the form of an umbel

1: aromatic evergreen trees of Pacific coast [syn: {genus Umbellularia}]

1: Pacific coast tree having aromatic foliage and small umbellate flowers followed by olivelike fruit; yields a hard tough wood [syn: {California laurel}, {California bay tree}, {Oregon myrtle}, {pepp...

1: of the color of any of various natural brown earth pigments n 1: an earth pigment 2: a medium to dark brown color [syn: {chocolate}, {coffee}, {deep brown}, {burnt umber}]

1: relating to or resembling the umbilicus; "umbilical cord"

1: membranous duct connecting the fetus with the placenta

1: protrusion of the intestine and omentum through a hernia in the abdominal wall near the navel; usually self correcting after birth [syn: {omphalocele}]

1: a vein in the umbilical cord; returns nutrient blood from the placenta to the fetus [syn: {vena umbilicalis}]

1: membranous structure that functions as the circulatory system in mammal embryos until the heart becomes functional [syn: {yolk sac}, {vitelline sac}, {vesicula umbilicus}]

1: depressed like a naval