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.
Monaco’s son, now 7-years-old and in the second grade, is learning through activities such as field trips to a marsh to study animals and the elements, or an at-school farm to learn about the life cycle of plants and pollination. — Cayla Bamberger, New York Daily News, 25 Sep. 2026 Modern CMOs oversee customer data, technology investments, revenue programs and engagement across the customer life cycle, but none of that guarantees a voice. — Alexi Hatch, Forbes.com, 24 Sep. 2026 More concretely, Mazzolai would like to incorporate the concept of a life cycle into the design of robots, so that at the end of their useful life these machines can be reused, recycled, or even biodegraded. — IEEE Spectrum, 22 Sep. 2026 The odds are even steeper when observing the entire life cycle, with less than 1% surviving from the egg stage all the way to adulthood. — Ruby Grisin, Louisville Courier Journal, 18 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 2 Oct. 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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