Definitions for radioactivityˌreɪ di oʊ ækˈtɪv ɪ ti

This page provides all possible meanings and translations of the word radioactivity

Random House Webster's College Dictionary

ra•di•o•ac•tiv•i•tyˌreɪ di oʊ ækˈtɪv ɪ ti(n.)

  1. the phenomenon, a property of certain elements, of spontaneously emitting radiation resulting from changes in the nuclei of atoms of the element.

    Category: Physics, Chemistry

Princeton's WordNet

  1. radiation, radioactivity(noun)

    the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay

Wiktionary

  1. radioactivity(Noun)

    Spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus.

  2. radioactivity(Noun)

    The radiation so emitted; including gamma rays, alpha particles, neutrons, electrons, positrons, etc.

Freebase

  1. Radioactivity

    "Radioactivity" is a song written by Ralf Hütter, Florian Schneider and Emil Schult, and recorded by electronic band Kraftwerk as the title track of its 1975 album Radio-Activity.

U.S. National Library of Medicine

  1. Radioactivity

    The spontaneous transformation of a nuclide into one or more different nuclides, accompanied by either the emission of particles from the nucleus, nuclear capture or ejection of orbital electrons, or fission. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)


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