life span

noun

Definition of life span

  1. 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. 2 :  the duration of existence of an individual

Examples of life span in a sentence

  1. the average life span of house cats

  2. increase the human life span

1831

First Known Use of life span

1831


LIFE SPAN Defined for English Language Learners

life span

noun

Definition of life span for English Language Learners

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


Medical Dictionary

life span

play
noun \ˈlīf-ˌspan\

Medical Definition of life span

  1. 1:  the duration of existence of an individual

  2. 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



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