- life span
- 1. the longest period over which the life of any organism or species may extend, according to the available biological knowledge concerning it.2. the longevity of an individual.[1915-20]
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life span,1. a) the length of time that it is possible for a member of a given animal or plant species to live: »Modern medicine has increased man's life span.
b) the length of time that such a member lives.2. the actual or potential duration of existence of anything: »The average life span of Governments in the Fourth Republic... (New York Times).
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(also lifespan) n. the length of time for which a person or animal lives or a thing functionsthe human life span
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noun, pl ⋯ spans [count]: the amount of time that a person or animal actually livesthe average life span of house cats
increase/lengthen the human life span
— often used figurativelyRecharging can extend the life span of a battery.
the life span of a building/appliance
the life span of a controversy
Useful english dictionary. 2012.