lifespan

Plural: lifespans

Noun

• the period during which something is functional (as between birth and death)
• The length of time for which an organism lives.
• The length of time for which something exists or is current, valid, or usable.

Examples

• Some clams have lifespans far longer than those of human beings.

Synonyms

life, life-time, lifetime, working life[durable good]]s>

Related Words

for life, lifelong