life cycle

noun

1
: the series of stages in form and functional activity through which an organism passes between successive recurrences of a specified primary stage
2
3
: a series of stages through which something (such as an individual, culture, or manufactured product) passes during its lifetime

Examples of life cycle in a Sentence

the life cycle of a shark
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
At the same time, there’s no one-size-fits all for chemical hazard risks, and each substance must be evaluated in terms of application, exposure, life cycle and other factors that can impact hazard levels. Jennifer Bringle, Footwear News, 10 Sep. 2026 Monarch butterflies typically live from two to six weeks, with the exception of the last generation of the year (meaning butterflies that complete the life cycle and survive to see winter) that migrates. Sarah Moore, Freep.com, 9 Sep. 2026 These elements of the software development life cycle (SDLC) are constant and haven’t disappeared with AI development. Kumar Chivukula, Forbes.com, 8 Sep. 2026 Faster life cycles directly correlate to a multiplication of mosquitoes. Elena Tittel, Chicago Tribune, 6 Sep. 2026 See All Example Sentences for life cycle

Word History

First Known Use

1855, in the meaning defined at sense 1

Time Traveler
The first known use of life cycle was in 1855

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Cite this Entry

“Life cycle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/life%20cycle. Accessed 12 Sep. 2026.

Kids Definition

life cycle

noun
1
: the series of stages of form and activity through which a living thing passes from a beginning stage (as an egg) in one individual to the same stage in its offspring
2

Medical Definition

life cycle

noun
1
: the series of stages in form and functional activity through which an organism passes between successive recurrences of a specified primary stage
2

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