radioactive

radioactive
radioactive a`di*o*ac"tive (r[=a]`d[i^]*[-o]*[a^]k"t[i^]v), a. [Radio- + active.] 1. (Physics) Capable of luminescence under the action of cathode rays, X rays, or any of the allied forms of radiation. [obsolete] [Webster 1913 Suppl.]

2. (Physics) of, exhibiting, or caused by {radioactivity}. [PJC]


The Collaborative International Dictionary of English. 2000.

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