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.
Think about the phenology of plants, taking note of when the plants complete their life cycle, as this can shift the timing of the flowers. Yelena Moroz Alpert, Architectural Digest, 8 Apr. 2026 The firm has seen operators anticipate relatively short life cycles and construct facilities that are more modular in response. April Roach, CNBC, 6 Apr. 2026 These pests are easy to squish, and this is time well spent, since there are up to five generations of these pests a year and elimination in the spring interrupts their life cycle and minimizes our rose slug angst for the remainder of the year. Rita Perwich, San Diego Union-Tribune, 4 Apr. 2026 To minimize pest pressure, practice crop rotation to disrupt the pests' life cycle, and apply neem oil regularly. Sj McShane, Martha Stewart, 3 Apr. 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

Browse Nearby Words

Cite this Entry

“Life cycle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/life%20cycle. Accessed 9 Apr. 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

More from Merriam-Webster on life cycle

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster