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
Words nearby life span
life science,
life sentence,
life signs,
life skill,
life space,
life span,
life stress,
life table,
life vest,
life zone,
life-and-death
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.