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mean life
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noun Physics.
the average time that an unstable particle or nucleus survives before it decays.
QUIZ
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Which of the following nouns has an irregular plural form?
Also called average life, lifetime.
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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British Dictionary definitions for mean life
mean life
noun
physics the average time of existence of an unstable or reactive entity, such as a nucleus, elementary particle, charge carrier, etc; lifetime. It is equal to the half-life divided by 0.693 15Symbol: Ï„
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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