Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Of, exhibiting, or caused by radioactivity.
  • adjective Informal Extremely sensitive or controversial.

from The Century Dictionary.

  • Exhibiting or pertaining to radioactivity (which see): as, radioactive substances.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective (Physics), obsolete Capable of luminescence under the action of cathode rays, X rays, or any of the allied forms of radiation.
  • adjective (Physics) of, exhibiting, or caused by radioactivity.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Exhibiting radioactivity.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective exhibiting or caused by radioactivity

Etymologies

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