life span

noun

Definition of life span

1 : the average length of life of a kind of organism or of a material object especially in a particular environment or under specified circumstances
2 : the duration of existence of an individual

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Examples of life span in a Sentence

the average life span of house cats increase the human life span
Recent Examples on the Web However, congressional investigators discovered an FAA analysis — conducted after the first Max crash — that predicted there would be 15 more crashes during the plane’s life span if the flight-control software were not fixed. David Koenig, chicagotribune.com, "FAA approves Boeing 737 Max to fly again, a milestone for Chicago-based Boeing," 18 Nov. 2020 However, congressional investigators discovered an FAA analysis — conducted after the first Max crash — that predicted there would be 15 more crashes during the plane’s life span if the flight-control software were not fixed. David Koenig, Anchorage Daily News, "FAA clears Boeing 737 Max to fly again, but passengers won’t see them right away," 18 Nov. 2020 Methane is an extremely potent greenhouse gas, with a shorter life span than carbon dioxide but 80 times the heat-trapping power, according to some estimates. Lindsey Mcginnis, The Christian Science Monitor, "Points of Progress: Urban farming takes off in Seattle, and more," 14 Dec. 2020 But these materials often had a shorter life span and weren’t necessarily tailored to the environment. David Walter, Washington Post, "As floods, fires and extreme temperatures worsen, these designers are making the case for resilient building," 14 Sep. 2020 Higher quality stainless steel blades in combination with a powerful motor will help deliver the most precise slices, be able to handle tough jobs, as well as offer you the longest life span. Eric Alt, Popular Science, "Best food processor: Chop your way to easy meal prep," 13 Dec. 2020 But earlier this year, Keiji Kaita, vice president of Toyota’s powertrain division, told the industry publication Automotive News that the company still needed to improve the battery’s limited life span. Daniel Oberhaus, Wired, "Did QuantumScape Just Solve a 40-Year-Old Battery Problem?," 8 Dec. 2020 Back then, the median life span from diagnosis to death was just eight years. Fortune, "Why we shouldn’t give up on bipartisanship, even now," 3 Nov. 2020 TikTok prolongs the series' life span by keeping viewers engaged and by bringing it to the attention of potential new viewers. Tracy Brown, Star Tribune, "'Criminal Minds' finds new life on TikTok," 15 Sep. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'life span.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of life span

1831, in the meaning defined at sense 2

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Time Traveler for life span

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The first known use of life span was in 1831

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Last Updated

6 Jan 2021

Cite this Entry

“Life span.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/life%20span. Accessed 15 Jan. 2021.

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More Definitions for life span

life span

noun

English Language Learners Definition of life span

: the amount of time that a person or animal actually lives

life span

noun
\ ˈlīf-ˌspan How to pronounce life span (audio) \

Medical Definition of life span

1 : the duration of existence of an individual
2 : the average length of life of a kind of organism or of a material object especially in a particular environment or under specified circumstances

More from Merriam-Webster on life span

Thesaurus: All synonyms and antonyms for life span

Britannica.com: Encyclopedia article about life span

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