Medical Dictionary

decay constant


Medical Definition of DECAY CONSTANT

:  the constant ratio of the number of radioactive atoms disintegrating in any specified short unit interval of time to the total number of atoms of the same kind still intact at the beginning of that interval—called also disintegration constant


How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears