radioactive
1: exhibiting or caused by radioactivity; "radioactive isotope"; "radioactive decay"; "radioactive fallout" [ant: {nonradioactive}]
radioactive dating
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
radioactive decay
1: the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation [syn: {decay}, {disintegration}]
radioactive dust
1: the radioactive particles that settle to the ground after a nuclear explosion [syn: {fallout}]
radioactive iodine test
1: test of thyroid function in which the patient is give an oral does of radioactive iodine-131
radioactive waste
1: useless radioactive materials that are left after some laboratory or commercial process is completed
radioactively
1: in a radioactive manner; "radioactively labeled"
radioactivity
1: the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay [syn: {radiation}]
radiobiology
1: the branch of biology that studies the effects of radiation on living organisms
radiocarbon
1: a radioactive isotope of carbon [syn: {carbon 14}]
radiocarbon dating
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...
radiocarpal joint
1: a joint between the distal end of the radius and the proximal row of carpal bones [syn: {wrist}, {carpus}, {wrist joint}, {articulatio radiocarpea}]
radiochemist
1: a chemist who specializes in nuclear chemistry [syn: {nuclear chemist}]
radiochemistry
1: the chemistry of radioactive substances [syn: {nuclear chemistry}]
radiogram
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...
radiograph
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}]
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...
radioimmunoassay
1: immunoassay of a substance that has been radioactively labeled
radioisotope
1: a radioactive isotope of an element; produced either naturally or artificially
Radiolaria
1: marine protozoa [syn: {order Radiolaria}]
radiolarian
1: protozoa with amoeba-like bodies and radiating filamentous pseudopods
radiolocate
1: locate by means of radar; "The pilot managed to radiolocate the lost aircraft"
|
radiolocation
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}]
radiologist
1: a medical specialist who uses radioactive substances and X-rays in the treatment of disease [syn: {radiotherapist}]
radiology
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...
radiolucent
1: almost complete transparent to X-rays or other forms of radiation; "radiolucent tissues" [ant: {radiopaque}]
radiolysis
1: molecular disintegration resulting from radiation
radiometer
1: meter to detect and measure radiant energy (electromagnetic or acoustic)
radiopacity
1: opacity to X-rays or other radiation [syn: {radio-opacity}]
radiopaque
1: not transparent to X-rays or other forms of radiation; "barium sulfate is radiopaque" [syn: {radio-opaque}] [ant: {radiolucent}]
radiopaque dye
1: dye that does not allow the passage of X rays or other radiation; used to outline certain organs during X-ray examination
radiopharmaceutical
1: pharmaceutical consisting of a radioactive compound used in radiation therapy
radiophone
1: a telephone that communicates by radio waves rather than along cables [syn: {radiotelephone}, {wireless telephone}]
radiophonic
1: relating to or by means of radiotelephony [syn: {radiotelephonic}]
radiophoto
1: a photograph transmitted by radio waves [syn: {radiophotograph}]
radiophotograph
1: a photograph transmitted by radio waves [syn: {radiophoto}]
radioscopy
1: (radiology) examination of the inner structure of opaque objects using X rays or other penetrating radiation [syn: {radiology}]
radiosensitive
1: sensitive to radiation; "radiosensitive cancer cells can be treated with radiotherapy"
radiosensitivity
1: sensitivity to the action of radiant energy [syn: {photosensitivity}]
radiotelegraph
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...
radiotelegraphy
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...
radiotelephone
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...
radiotelephonic
1: relating to or by means of radiotelephony [syn: {radiophonic}]
radiotelephony
1: telephony that uses transmission by radio rather than by wire [syn: {radiotelephone}, {wireless telephone}]
radiotherapist
1: a medical specialist who uses radioactive substances and X-rays in the treatment of disease [syn: {radiologist}]
radiotherapy
1: (medicine) the treatment of disease (especially cancer) by exposure to radiation from a radioactive substance [syn: {radiation therapy}, {radiation}, {actinotherapy}, {irradiation}]
|
