Medical Dictionary

life span

noun \ˈlīf-ˌspan\

Medical Definition of LIFE SPAN

1
:  the duration of existence of an individual
2
:  the average length of life of a kind of organism or of a material object especially in a particular environment or under specified circumstances

Browse

July 28, 2015
pachyderm Hear it
an elephant
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