radioactive









radioactive


adjective Physics, Chemistry.

  1. of, pertaining to, exhibiting, or caused by radioactivity.

adjective

  1. exhibiting, using, or concerned with radioactivity
adj.

1898, from French radio-actif, coined by Pierre and Marie Curie from radio-, comb. form of Latin radius (see radiation) + actif “active” (see active).

adj.

  1. Of or exhibiting radioactivity.

A descriptive term for a material made up of atoms in which radioactivity occurs.

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