adj. giving off or capable of giving off radiant energy in the form of particles or rays
Uranium is a radioactive element.
Uranium is a radioactive element.
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The scientist used bionics to examine the radioactive material.
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What caused the radioactive cosmic dust?
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When was the radioactive fallout expected to reach Australia?
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The scientist used a bionic arm to examine the radioactive material.
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The weak nuclear force is responsible for radioactive decay.
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hot; energetic; contaminated; dangerous
safe
5 syllables
ra-di-o-ac-tive
active
attractive
inactive
proactive
reactive
refractive
hyperactive
interactive
overactive
retroactive
unattractive
photorefractive
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