life‧span /ˈlaɪfspæn/
noun [countable] the average length of time that someone will live or that something will continue to work ⇒
lifetime:
Men have a shorter lifespan than women.a lifespan of 5 days/10 years etc A TV set has an average lifespan of 11 years. [TahlilGaran] Dictionary of Contemporary English ▲