Eve's constant

noun
\ˈēvz-\

Definition of Eve's constant 

: a measure of the intensity of radioactivity of a given substance consisting of the number of ions produced per second per cubic centimeter of ordinary air at a distance of one centimeter from one gram of the substance when in radioactive equilibrium

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History and Etymology for Eve's constant

after Arthur S. Eve †1948 British physicist

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Eve's constant

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