decay constant
- the reciprocal of the decay time.
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Origin of decay constant
First recorded in 1930–35
Also called decay rate, disintegration constant.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
decay constant
- The constant ratio for the number of atoms of a radionuclide that decay in a given period of time compared with the total number of atoms of the same kind present at the beginning of that period.disintegration constant radioactive constant
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The American Heritage® Stedman's Medical Dictionary
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