Lexic.us

Definition of Radioactivity

1. Noun. The spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay.

Definition of Radioactivity

1. Noun. Spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus. ¹

2. Noun. The radiation so emitted; including gamma rays, alpha particles, neutrons, electrons, positrons, etc. ¹

¹ Source: wiktionary.com

Definition of Radioactivity

1. [n -TIES]

Medical Definition of Radioactivity

1. The quality of emitting or the emission of corpuscular or electromagnetic radiations consequent to nuclear disintegration, a natural property of all chemical elements of atomic number above 83 and possible of induction in all other known elements. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Radioactivity

Other Resources: