mean life
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mean life
noun Physics.
1.
the average time that an unstable particle or nucleus survives before it decays.
2.
Also called average life, lifetime.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source
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Link To mean life
Collins
World English Dictionary
| mean life | |
| —n | |
| physics τ 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 15 | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
00:10
Mean life
is always a great word to know.
So is ninnyhammer. Does it mean:
| a fool or simpleton; ninny. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
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