lifespan.
The length of time for which an organism lives.
Meaning & usage
The length of time for which an organism lives.
Some clams have lifespans far longer than those of human beings.
The length of time for which something exists or is current, valid, or usable.
Where this word comes from
From life + span.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.