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  1. Dictionary
    lifespan
    /ˈlʌɪfspan/

    noun

    • 1. the length of time for which a person or animal lives or a thing functions: "the human lifespan"

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  2. www.merriam-webster.com › dictionary › lifespanLifespan Definition & Meaning - Merriam-Webster

    Learn the meaning of lifespan as the average length of life of a kind of organism or of a material object, or the duration of existence of an individual. See synonyms, examples, word history, and related entries.

  3. www.britannica.com › science › life-spanLife span | Definition, Measurement, & Facts | Britannica

    Oct 11, 2024 · life span, the period of time between the birth and death of an organism. It is a commonplace that all organisms die. Some die after only a brief existence, like that of the mayfly, whose adult life burns out in a day, and others like that of the gnarled bristlecone pines, which have lived thousands of years.

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  5. www.vocabulary.com › dictionary › lifespanLifespan - Definition, Meaning & Synonyms | Vocabulary.com

    Someone's lifespan is the total length of time they're alive, from birth to death. The lifespan of a mosquito is much shorter than the lifespan of an elephant. Over time, human lifespans have been getting longer and longer, as advanced medicine and nutrition keeps us healthier.

  6. dictionary.cambridge.org › dictionary › learner-englishMeaning of lifespan – Learner’s Dictionary - Cambridge Dictionary

    Lifespan is the amount of time that a person lives or a thing exists. Find out how to say lifespan in different languages and learn more about its meaning and usage.

  7. en.wikipedia.org › wiki › Life_expectancyLife expectancy - Wikipedia

    Life expectancy, longevity, and maximum lifespan are not synonymous. Longevity refers to the relatively long lifespan of some members of a population. Maximum lifespan is the age at death for the longest-lived individual of a species.

  8. www.oxfordlearnersdictionaries.com › definition › englishlifespan noun - Definition, pictures, pronunciation and usage...

    Lifespan is the length of time that something is likely to live, continue or function. Learn how to use this word in different contexts with pictures, pronunciation and grammar tips.

  9. www.collinsdictionary.com › dictionary › englishLIFE SPAN definition and meaning | Collins English Dictionary

    or lifespan (ˈlaɪfspæn) noun the period of time during which a human being, animal, machine, etc, may be expected to live or function under normal conditions