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.
Ultimately, optimizing the flow of delivery—by identifying and addressing bottlenecks across the life cycle, from request intake to production—can drive sustained efficiency and value. Prashanthi Kolluru, Forbes.com, 15 May 2026 The system enables closed-loop recycling, which extends material life cycles and reduces cotton emissions and pollution. Jennifer Bringle, Footwear News, 14 May 2026 Another key presentation tip goes back to the life cycle of salmonflies, which hatch among streamside rocks and on vegetation outside of the actual water. Dac Collins, Outdoor Life, 14 May 2026 After the initial fill, that water will stay in there for the life cycle of the system. Charlotte Observer, 13 May 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 20 May. 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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