life span


noun

the longest period over which the life of any organism or species may extend, according to the available biological knowledge concerning it.
the longevity of an individual.

Origin of life span

First recorded in 1915–20

Example sentences from the Web for lifespan

British Dictionary definitions for lifespan

life span

noun

the period of time during which a human being, animal, machine, etc, may be expected to live or function under normal conditions

Medical definitions for lifespan

life span

n.

A lifetime.
The average or maximum length of time an organism, a material, or an object can be expected to survive or last.