Ra`di*o-ac"tive (?), a. [Radio- + active.] (Physics) Capable of luminescence under the action of cathode rays, X rays, or any of the allied forms of radiation. -- Ra`di*o-ac*tiv"i*ty, n.
Ra`di*o-ac"tive (?), a. [Radio- + active.]
(Physics) Capable of luminescence under the action of cathode rays, X rays, or any of the allied forms of radiation. -- Ra`di*o-ac*tiv"i*ty, n.
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