useful life

noun

Definition of useful life

: the amount of time during which something is in good enough condition to be used the useful life of a satellite

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“Useful life.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/useful%20life. Accessed 30 Oct. 2020.

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useful life

noun
use·​ful life

Legal Definition of useful life

: an estimated amount of time during which an asset or facility will yield income or be useful — see also depreciation sense 1

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