Word:

radioactive

ra`di`o`ac´tive   Pronunciation: rā`dĭ`ô`ăk´tĭv
a.1.(Physics) Capable of luminescence under the action of cathode rays, X rays, or any of the allied forms of radiation.
2.(Physics) of, exhibiting, or caused by radioactivity.
Adj.1.radioactive - exhibiting or caused by radioactivity; "radioactive isotope"; "radioactive decay"; "radioactive fallout"
Antonyms:
nonradioactive - not radioactive
nonradioactive
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radio signal
radio source
radio spectrum
radio station
radio telescope
radio transmitter
radio wave
Radio-
radio-controlled
radio-controlled aircraft
Radio-flagellata
radio-frequency spectrum
radio-gramophone
radio-opacity
radio-opaque
radio-phonograph
-- radioactive --
radioactive dating
radioactive decay
radioactive dust
radioactive iodine excretion test
radioactive iodine test
radioactive iodine uptake test
radioactive material
radioactive waste
radioactively
radioactivity
radioactivity unit
radiobiology
radiocarbon
radiocarbon dating
radiocarpal joint
radiochemist
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