Hypertext Webster Gateway: "lifetime"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Lifetime \Life"time`\ (-t[imac]m`), n.
The time that life continues.
From WordNet (r) 1.7 (wn)
lifetime
n : the period during which something is functional (as between
birth and death); "the battery had a short life"; "he
lived a long and happy life" [syn: {life}, {lifespan}]
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