Medical Dictionary

life span

noun \ˈlīf-ˌspan\

Medical Definition of LIFE SPAN

:  the duration of existence of an individual
:  the average length of life of a kind of organism or of a material object especially in a particular environment or under specified circumstances


July 04, 2015
stringent Hear it
rigorous, strict, or severe
Take a 3-minute break and test your skills!
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