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 lifespan lifespan /ˈlaɪfˌspæn/

noun

  1. The period during which something is functional (as between birth and death)  ( life-time , lifespan , lifetime , life )
    the period during which something is functional (as between birth and death)
     The battery had a short life
    the battery had a short life
     He lived a long and happy life
    he lived a long and happy life