1: a genus of fungus belonging to the family Geastraceae [syn: {genus Radiigera}]

1: a fungus similar to an earthstar except that it does not open up; the spore mass is brown at maturity with a column of sterile tissue extending up into it

1: indicating radiation or radioactivity; "radiochemistry" n 1: medium for communication [syn: {radiocommunication}, {wireless}] 2: an electronic receiver that detects and demodulates and amplifies tr...

1: omnidirectional antenna comprising the part of a radio receiver by means of which radio signals are received [syn: {radio antenna}]

1: an announcer whose voice is broadcast on radio

1: omnidirectional antenna comprising the part of a radio receiver by means of which radio signals are received [syn: {radio aerial}]

1: the branch of astronomy that detects and studies the radio waves emitted by celestial bodies

1: a characteristic signal emitted by a transmitter used for navigation 2: a radio station that broadcasts a directional signal for navigational purposes [syn: {beacon}]

1: a signal transmitted along a narrow path; guides pilots in darkness or bad weather [syn: {beam}]

1: the strength of a radio wave picked up by a radio telescope

1: a broadcast via radio

1: a chassis for a radio receiver

1: a direction finder that gives a bearing by determining the direction of incoming radio signals

1: measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects [syn: {radar}, {microwave radar}, {radiolocation}]

1: an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m [syn: {radio wave}, {radio radiation}]

1: an electromagnetic wave frequency between audio and infrared

1: radio telescope that uses interference patterns from two antennas instead of a parabolic antenna

1: a two-way radio communication system (usually microwave); part of a more extensive telecommunication network [syn: {link}]

1: a radio broadcast of news

1: static at radio wavelengths

1: an observation made with a radio telescope

1: someone who operates a radio transmitter

1: an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m [syn: {radio wave}, {radio emission}]

1: an electronic receiver that detects and demodulates and amplifies transmitted signals [syn: {receiving set}, {radio set}, {radio}, {tuner}, {wireless}]

1: astronomical telescope that picks up electromagnetic radiations in the radio-frequency range from extra-terrestrial sources [syn: {radio telescope}]

1: an electronic receiver that detects and demodulates and amplifies transmitted signals [syn: {radio receiver}, {receiving set}, {radio}, {tuner}, {wireless}]

1: a radio wave used to transmit and receive messages

1: an object that radiates radio waves

1: the entire spectrum of electromagnetic frequencies used for communications; includes frequencies used for radio and radar and television [syn: {radio-frequency spectrum}]

1: station for the production and transmission of radio broadcasts

1: astronomical telescope that picks up electromagnetic radiations in the radio-frequency range from extra-terrestrial sources [syn: {radio reflector}]

1: transmitter that is the part of a radio system that transmits signals

1: an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m [syn: {radio emission}, {radio radiation}]

1: operated and guided by radio; "a radio-controlled airplane"

1: an aircraft without a pilot that is operated by remote control [syn: {drone}, {pilotless aircraft}]

1: the entire spectrum of electromagnetic frequencies used for communications; includes frequencies used for radio and radar and television [syn: {radio spectrum}]

1: electronic equipment consisting of a combination of a radio receiver and a record player [syn: {radio-phonograph}]

1: opacity to X-rays or other radiation [syn: {radiopacity}]

1: not transparent to X-rays or other forms of radiation; "barium sulfate is radiopaque" [syn: {radiopaque}] [ant: {radiolucent}]

1: electronic equipment consisting of a combination of a radio receiver and a record player [syn: {radio-gramophone}]

1: exhibiting or caused by radioactivity; "radioactive isotope"; "radioactive decay"; "radioactive fallout" [ant: {nonradioactive}]

1: measurement of the amount of radioactive material (usually carbon 14) that an object contains; can be used to estimate the age of the object

1: the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation [syn: {decay}, {disintegration}]

1: the radioactive particles that settle to the ground after a nuclear explosion [syn: {fallout}]

1: radioactive iodine test that measures the amount of radioactive iodine excreted in the urine

1: test of thyroid function in which the patient is give an oral does of radioactive iodine-131

1: radioactive iodine test that measures the amount of radioactive iodine taken up by the thyroid gland [syn: {RAIU}]

1: material that is radioactive

1: useless radioactive materials that are left after some laboratory or commercial process is completed

1: in a radioactive manner; "radioactively labeled"

1: the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay [syn: {radiation}]

1: a measure of radioactivity

1: the branch of biology that studies the effects of radiation on living organisms

1: a radioactive isotope of carbon [syn: {carbon 14}]

1: a chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon-14; believed to be reliable up to 40,000 years [syn: {carbon dating}, {carbon-14...

1: a joint between the distal end of the radius and the proximal row of carpal bones [syn: {wrist}, {carpus}, {wrist joint}, {articulatio radiocarpea}]

1: a chemist who specializes in nuclear chemistry [syn: {nuclear chemist}]

1: the chemistry of radioactive substances [syn: {nuclear chemistry}]

1: a radioactive isotope of chlorine

1: medium for communication [syn: {radio}, {wireless}]

1: a message transmitted by wireless telegraphy 2: a photographic image produced on a radiosensitive surface by radiation other than visible light (especially by X-rays or gamma rays) [syn: {radiograp...

1: a photographic image produced on a radiosensitive surface by radiation other than visible light (especially by X-rays or gamma rays) [syn: {radiogram}, {shadowgraph}, {skiagraph}, {skiagram}]

1: a person who makes radiographs

1: relating to or produced by radiography

1: the process of making a radiograph; producing an image on a radiosensitive surface by radiation other than visible light [syn: {skiagraphy}] 2: photography that uses other kinds of radiation than v...

1: immunoassay of a substance that has been radioactively labeled

1: a radioactive isotope of an element; produced either naturally or artificially

1: marine protozoa [syn: {order Radiolaria}]

1: protozoa with amoeba-like bodies and radiating filamentous pseudopods

1: locate by means of radar; "The pilot managed to radiolocate the lost aircraft"

1: measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects [syn: {radar}, {microwave radar}, {radio detection and ranging}]

1: a scientist trained in radiological technology

1: of or relating to radiology

1: a medical specialist who uses radioactive substances and X-rays in the treatment of disease [syn: {radiotherapist}]

1: the branch of medical science dealing with the medical use of X-rays or other penetrating radiation 2: (radiology) examination of the inner structure of opaque objects using X rays or other penetra...

1: almost complete transparent to X-rays or other forms of radiation; "radiolucent tissues" [ant: {radiopaque}]

1: molecular disintegration resulting from radiation

1: meter to detect and measure radiant energy (electromagnetic or acoustic)

1: radiometer that is extremely sensitive

1: opacity to X-rays or other radiation [syn: {radio-opacity}]

1: not transparent to X-rays or other forms of radiation; "barium sulfate is radiopaque" [syn: {radio-opaque}] [ant: {radiolucent}]

1: dye that does not allow the passage of X rays or other radiation; used to outline certain organs during X-ray examination

1: pharmaceutical consisting of a radioactive compound used in radiation therapy

1: a telephone that communicates by radio waves rather than along cables [syn: {radiotelephone}, {wireless telephone}]

1: relating to or by means of radiotelephony [syn: {radiotelephonic}]

1: a photograph transmitted by radio waves [syn: {radiophotograph}]

1: a photograph transmitted by radio waves [syn: {radiophoto}]

1: transmission of photographs by radio waves

1: protection against harmful effects of radiation

1: (radiology) examination of the inner structure of opaque objects using X rays or other penetrating radiation [syn: {radiology}]

1: sensitive to radiation; "radiosensitive cancer cells can be treated with radiotherapy"

1: sensitivity to the action of radiant energy [syn: {photosensitivity}]

1: telegraphy that uses transmission by radio rather than by wire [syn: {radiotelegraphy}, {wireless telegraphy}] 2: the use of radio to send telegraphic messages (usually by Morse code) [syn: {radiot...

1: a signal transmitted by telegraphy [syn: {telegraphic signal}]

1: telegraphy that uses transmission by radio rather than by wire [syn: {radiotelegraph}, {wireless telegraphy}] 2: the use of radio to send telegraphic messages (usually by Morse code) [syn: {radiote...

1: telephony that uses transmission by radio rather than by wire [syn: {radiotelephony}, {wireless telephone}] 2: a telephone that communicates by radio waves rather than along cables [syn: {radiophon...

1: relating to or by means of radiotelephony [syn: {radiophonic}]

1: telephony that uses transmission by radio rather than by wire [syn: {radiotelephone}, {wireless telephone}]

1: a medical specialist who uses radioactive substances and X-rays in the treatment of disease [syn: {radiologist}]

1: (medicine) the treatment of disease (especially cancer) by exposure to radiation from a radioactive substance [syn: {radiation therapy}, {radiation}, {actinotherapy}, {irradiation}]

1: equipment used to treat diseases with x-rays or radioactivity

1: radioactive isotope of thorium with mass number 228 [syn: {thorium-228}]

1: pungent fleshy edible root 2: pungent edible root of any of various cultivated radish plants 3: Eurasian plant widely cultivated for its edible pungent root usually eaten raw [syn: {Raphanus sativu...

1: a cruciferous plant of the genus Raphanus having a pungent edible root

1: an intensely radioactive metallic element that occurs in minute amounts in uranium ores [syn: {Ra}, {atomic number 88}]

1: the use of radium in radiation therapy [syn: {Curietherapy}]

1: the length of a line segment between the center and circumference of a circle or sphere [syn: {r}] 2: a straight line from the center to the perimeter of a circle (or from the center to the surface...

1: the radius of the circle of curvature; the absolute value of the reciprocal of the curvature of a curve at a given point

1: a line connecting a satellite to the center of the body around which it is rotating 2: a line connecting a point in space to the origin of a polar coordinate system

1: (numeration system) the positive integer that is equivalent to one in the next higher counting place; "10 is the radix of the decimal system" [syn: {base}] [also: {radices} (pl)]

1: a housing for a radar antenna; transparent to radio waves [syn: {radar dome}]

1: a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health [syn...

{radula}

1: very small species of shrubs of southern hemisphere: bush hibiscus [syn: {genus Radyera}]

1: southern and western Australian shrub with unlobed or shallowly lobed toothed leaves and purple flowers; sometimes placed in genus Hibiscus [syn: {bush hibiscus}, {Hibiscus farragei}]

1: desert shrub of Syria and Arabia having small white flowers; constitutes the juniper of the Old Testament; sometimes placed in genus Genista [syn: {retem}, {juniper bush}, {juniper}, {Retama raetam...

1: the airforce of Great Britain [syn: {Royal Air Force}] 2: a Marxist and Maoist terrorist organization in Germany; a network of underground guerillas who committed acts of violence in the service of...

1: Italian painter whose many paintings exemplify the ideals of the High Renaissance (1483-1520) [syn: {Raphael}, {Raffaello Sanzio}]

1: Italian painter whose many paintings exemplify the ideals of the High Renaissance (1483-1520) [syn: {Raphael}, {Raffaello Santi}]

1: leaf fibers of the raffia palm tree; used to make baskets and mats etc. [syn: {raphia}] 2: fiber of a raffia palm used as light cordage and in making hats and baskets 3: feather palm of tropical Af...

1: a large feather palm of Africa and Madagascar having very long pinnatisect fronds yielding a strong commercially important fiber from its leafstalks [syn: {raffia palm}, {Raffia ruffia}]

1: a large feather palm of Africa and Madagascar having very long pinnatisect fronds yielding a strong commercially important fiber from its leafstalks [syn: {Raffia farinifera}, {Raffia ruffia}]

1: a large feather palm of Africa and Madagascar having very long pinnatisect fronds yielding a strong commercially important fiber from its leafstalks [syn: {raffia palm}, {Raffia farinifera}]

1: a tall Brazilian feather palm with a terminal crown of very large leathery pinnatisect leaves rising from long strong stems used for structural purposes [syn: {jupati}, {jupaty}, {jupati palm}]

1: a palm of the genus Raffia [syn: {bamboo palm}]

1: a trisaccharide that occurs in sugar beets and cotton seeds and certain cereals

1: marked by smartness in dress and manners; "a dapper young man"; "a jaunty red hat" [syn: {dapper}, {dashing}, {jaunty}, {natty}, {rakish}, {smart}, {spiffy}, {snappy}, {spruce}] 2: marked by a care...

1: in a rakish manner; "she wore her hat rakishly at an angle" [syn: {rakishly}, {carelessly}]

1: a lottery in which the prizes are goods rather than money v : dispose of in a lottery; "We raffled off a trip to the Bahamas" [syn: {raffle off}]

1: dispose of in a lottery; "We raffled off a trip to the Bahamas" [syn: {raffle}]

1: British colonial administrator who founded Singapore (1781-1826) [syn: {Sir Thomas Raffles}, {Sir Thomas Stamford Raffles}]

1: a family of parasitic plants of the order Aristolochiales [syn: {family Rafflesiaceae}]

1: a flat float (usually made of logs or planks) that can be used for transport or as a platform for swimmers 2: (often followed by `of') a large number or amount or extent; "a batch of letters"; "a d...

1: a foundation (usually on soft ground) consisting of an extended layer of reinforced concrete

1: one of several parallel sloping beams that support a roof [syn: {balk}, {baulk}] 2: someone who travels by raft [syn: {raftsman}, {raftman}] v : provide (a ceiling) with rafters

1: having the rafters especially having them visible; "a raftered ceiling"

1: someone who travels by raft [syn: {raftsman}, {rafter}]

1: a large number or amount; "made lots of new friends"; "she amassed a mountain of newspapers" [syn: {tons}, {dozens}, {heaps}, {lots}, {mountain}, {piles}, {scores}, {stacks}, {loads}, {slews}, {wad...

1: someone who travels by raft [syn: {raftman}, {rafter}]

1: a small piece of cloth or paper [syn: {shred}, {tag}, {tag end}, {tatter}] 2: a week at British universities during which side-shows and processions of floats are organized to raise money for chari...

1: a day on which university students hold a rag

1: a cloth doll that is stuffed and (usually) painted

1: any of several tropical annual climbers having large yellow flowers and edible young fruits; grown commercially for the mature fruit's dried fibrous interior that is used as a sponge [syn: {luffa},...

1: paper made partly or wholly from rags

1: makers and sellers of fashionable clothing [syn: {apparel industry}, {garment industry}, {fashion industry}, {fashion business}]

1: a week at British universities during which side-shows and processions of floats are organized to raise money for charities [syn: {rag}]

1: a dirty shabbily clothed urchin [syn: {tatterdemalion}]

1: a motley assortment of things [syn: {odds and ends}, {oddments}, {melange}, {farrago}, {hodgepodge}, {mishmash}, {mingle-mangle}, {hotchpotch}, {omnium-gatherum}] 2: a bag in which rags are kept

1: a feeling of intense anger; "hell hath no fury like a woman scorned"; "his face turned red with rage" [syn: {fury}, {madness}] 2: a state of extreme anger; "she fell into a rage and refused to answ...

1: East Indian cereal grass whose seed yield a somewhat bitter flour, a staple in the Orient [syn: {finger millet}, {ragi}, {African millet}, {coracan}, {corakan}, {kurakkan}, {Eleusine coracana}]

{rag}

1: fringed orchid of the eastern United States having a greenish flower with the lip deeply lacerate [syn: {ragged orchis}, {ragged-fringed orchid}, {green fringed orchis}, {Habenaria lacera}]

1: fringed orchid of the eastern United States having a greenish flower with the lip deeply lacerate [syn: {ragged orchid}, {ragged-fringed orchid}, {green fringed orchis}, {Habenaria lacera}]

1: common perennial native to Europe and western Asia having usually pink flowers with ragged petals [syn: {cuckoo flower}, {Lychnis flos-cuculi}, {Lychins floscuculi}]

1: fringed orchid of the eastern United States having a greenish flower with the lip deeply lacerate [syn: {ragged orchid}, {ragged orchis}, {green fringed orchis}, {Habenaria lacera}]

1: in a ragged uneven manner; "I took the cigarette he offered, drawing at it raggedly" [syn: {unevenly}] 2: in a ragged irregular manner; "a stone wall trails raggedly through the woods" [syn: {strag...

1: shabbiness by virtue of being in rags

{rag}

1: East Indian cereal grass whose seed yield a somewhat bitter flour, a staple in the Orient [syn: {finger millet}, {ragee}, {African millet}, {coracan}, {corakan}, {kurakkan}, {Eleusine coracana}]

1: characterized by violent and forceful activity or movement; very intense; "the fighting became hot and heavy"; "a hot engagement"; "a raging battle"; "the river became a raging torrent" [syn: {hot}...

1: a garment (coat or sweater) that has raglan sleeves

1: a sleeve that extends in one piece to the neckline of a coat or sweater with seams from the armhole to the neck

1: Norwegian economist noted for his work in econometrics (1895-1973) [syn: {Frisch}, {Ragnar Frisch}]

1: Norwegian economist noted for his work in econometrics (1895-1973) [syn: {Frisch}, {Ragnar Anton Kittil Frisch}]

1: myth about the ultimate destruction of the gods in a battle with evil [syn: {Gotterdammerung}, {Twilight of the Gods}]

1: well-seasoned stew of meat and vegetables

1: an unskilled person who picks up rags from trash cans and public dumps as a means of livelihood

1: a form of anthrax infection acquired by inhalation of dust containing Bacillus anthracis; initial symptoms (chill and cough and dyspnea and rapid pulse) are followed by extreme cardiovascular colla...

1: a worker who sorts rags and old clothing for new uses (as in papermaking)

1: a form of anthrax infection acquired by inhalation of dust containing Bacillus anthracis; initial symptoms (chill and cough and dyspnea and rapid pulse) are followed by extreme cardiovascular colla...

1: disparaging terms for the common people [syn: {rabble}, {riffraff}, {ragtag and bobtail}]

1: disparaging terms for the common people [syn: {rabble}, {riffraff}, {ragtag}]

1: music with a syncopated melody (usually for the piano) [syn: {rag}]

1: a port city in southwestern Croatia on the Adriatic; a popular tourist center [syn: {Dubrovnik}]

1: widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity [syn: {ragwort}, {tansy ragwort}, {benweed}, {Senecio jacobaea}] 2:...

1: pollen of the ragweed plant is a common allergen

1: widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity [syn: {tansy ragwort}, {ragweed}, {benweed}, {Senecio jacobaea}] 2:...

1: a demon who swallows the sun causing eclipses

1: a sudden short attack [syn: {foray}, {maraud}] 2: an attempt by speculators to defraud investors v 1: search without warning, make a sudden surprise attack on; "The police raided the crack house" [...

1: someone who takes spoils or plunder (as in war) [syn: {plunderer}, {pillager}, {looter}, {spoiler}, {despoiler}, {freebooter}] 2: a corporate investor who intends to take over a company by buying a...

1: characterized by plundering or pillaging or marauding; "bands of marauding Indians"; "predatory warfare"; "a raiding party" [syn: {marauding}, {predatory}]

1: a barrier consisting of a horizontal bar and supports [syn: {railing}] 2: short for railway; "he traveled by rail"; "he was concerned with rail safety" 3: a bar or bars of rolled steel making a tra...

1: a fence (usually made of split logs laid across each other at an angle)

1: enclose with rails; "rail in the old graves" [syn: {rail}]

1: the road consisting of railroad track and roadbed [syn: {line}, {railway line}]

1: separate with a railing; "rail off the crowds from the Presidential palace" [syn: {rail}]

1: the activity of designing and constructing and operating railroads [syn: {railroading}]

1: a laborer who splits logs to build split-rail fences [syn: {splitter}]

1: a fan of racing who watches races from the outer rail of the track

1: a wheeled vehicle adapted to the rails of railroad; "three cars had jumped the rails" [syn: {car}, {railway car}, {railroad car}]

1: a railroad depot in a theater of operations where military supplies are unloaded for distribution 2: the end of the completed track on an unfinished railway

1: a barrier consisting of a horizontal bar and supports [syn: {rail}] 2: material for making rails or rails collectively

1: light teasing repartee [syn: {banter}, {give-and-take}, {backchat}]

1: line that is the commercial organization responsible for operating a railway system [syn: {railway}, {railroad line}, {railway line}, {railway system}] 2: a line of track providing a runway for whe...

1: a bed on which railroad track is laid

1: a wheeled vehicle adapted to the rails of railroad; "three cars had jumped the rails" [syn: {car}, {railcar}, {railway car}]

1: the operator of a railway locomotive [syn: {engineer}, {locomotive engineer}, {engine driver}]

1: an apartment whose rooms are all in a line with doors between them

1: line that is the commercial organization responsible for operating a railway system [syn: {railway}, {railroad}, {railway line}, {railway system}]

1: an employee of a railroad [syn: {trainman}, {railroader}, {railwayman}, {railway man}]