cell membrane


Definition of cell membrane

: a membrane of a cell especially : plasma membrane

Examples of cell membrane in a Sentence

Recent Examples on the Web

Researchers found that an enzyme involved in building cell membranes becomes abnormally active in various malignancies. San Diego Union-Tribune, "Biotech notebook: Cancer discovery, bacterial syringes and organoids," 13 July 2019 Conventional freezing doesn’t help: Ice crystals rupture cell membranes and push the proteins around; the biomolecules react faster than the water freezes; and evaporating ice crystals disrupt the fidelity of the images. Quanta Magazine, "Supercool Protein Imaging Gets the Nobel Prize," 4 Oct. 2017 Specifically, he is fascinated by cell membranes, the fatty envelopes that encase our cells. Quanta Magazine, "In Warm, Greasy Puddles, the Spark of Life?," 17 Mar. 2016 For the thread, Diane chose Namjoon as the nucleus; Jin as the endoplasmic recticulum; Yoongi as the cell membrane; Hoseok as the mitochondria; Jimin as the Golgi body; Taehyung as the lysosome; and Jungkook for the ribosome. Lauren Rearick, Teen Vogue, "A BTS Fan Went Viral After Comparing Members of the Group to an Animal Cell," 23 Nov. 2018 While the research is mixed, oral and topical forms claim to protect skin-cell membranes from free-radical damage, while firming, smoothing and brightening the complexion. Allure, "The Skin-Care Glossary: A Comprehensive Guide to Everything You Need to Know," 17 Aug. 2018 The genes affected nearly every aspect of nerve function, like allowing ions to move across cell membranes, nerve cell metabolism, forming and maintaining connections among nerve cells, and more. John Timmer, Ars Technica, "The genetics of education: 1,271 genes account for 10% of the variation," 25 July 2018 Their cell membranes, for example, are made up of two different kinds of fatty molecules, known as lipids. Prachi Patel, Scientific American, "Engineered Microbe Shakes Up the Tree of Life," 13 July 2018 Larger, multicellular organisms—with multiple flagella—were better at sweeping water past their cell membranes to harvest oxygen. Elizabeth Pennisi, Science | AAAS, "The momentous transition to multicellular life may not have been so hard after all," 28 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cell membrane.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cell membrane

1840, in the meaning defined above

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Last Updated

18 Jul 2019

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The first known use of cell membrane was in 1840

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More Definitions for cell membrane

cell membrane


Kids Definition of cell membrane

: the thin outside layer that surrounds the cytoplasm of a cell and controls the movement of materials into and out of the cell

cell membrane


Medical Definition of cell membrane

: a membrane of a cell especially : plasma membrane

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