RADIOACTIVITY

radiation, radioactivity

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

Source: WordNet® 3.1


Etymology

Noun

radioactivity (usually uncountable, plural radioactivities)

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

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

Source: Wiktionary



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Word of the Day

27 February 2025

SUMMIT

(verb) reach the summit (of a mountain); “They breasted the mountain”; “Many mountaineers go up Mt. Everest but not all summit”


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Coffee Trivia

According to WorldAtlas, Canada is the only non-European country to make its top ten list of coffee consumers. The United States at a distant 25 on the list.

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