cell line

noun

: a cell culture selected for uniformity from a cell population derived from a usually homogeneous tissue source (such as an organ)
carcinoma cell lines

Examples of cell line in a Sentence

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.
The project will preserve living cell lines and genetic data for endangered species. Sasha Richie, Dallas Morning News, 2 Feb. 2026 Those cells, called HeLa cells, became the first immortal human cell line and have been used ever since in countless scientific breakthroughs, including vaccine development and cancer research. Akilah Weber Pierson, San Diego Union-Tribune, 30 Jan. 2026 With these cell lines, the team could quickly screen for the molecules capable of killing the resistant cells. Isabella Backman, Hartford Courant, 27 Jan. 2026 Using ultra-fine glass needles, the researchers injected tiny droplets of a commercial photoresist, known as IP-S, into HeLa cells, a common human cell line. Bojan Stojkovski, Interesting Engineering, 18 Jan. 2026 See All Example Sentences for cell line

Word History

First Known Use

1940, in the meaning defined above

Time Traveler
The first known use of cell line was in 1940

Browse Nearby Words

Cite this Entry

“Cell line.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cell%20line. Accessed 14 Feb. 2026.

Medical Definition

cell line

noun
: a cell culture selected for uniformity from a cell population derived from a usually homogeneous tissue source (as an organ)
a newly established cell line derived from human endometrial carcinomaBiological Abstracts
Last Updated: - Updated example sentences
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