ra·dio·ac·tive /ˌredioˈæktɪv/
(a.)放射性的,有放射能的
ra·dio·ac·tive /ˌredɪoˈæktɪv/ 形容詞
放射性的,放射的
ra·di·o·ac·tive a.
1. Physics Capable of luminescence under the action of cathode rays, X rays, or any of the allied forms of radiation. [obsolete]
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radioactive
adj : exhibiting or caused by radioactivity; "radioactive
isotope"; "radioactive decay"; "radioactive fallout"
[ant: nonradioactive]