stem cell


Definition of stem cell

: an unspecialized cell that gives rise to differentiated cells hematopoietic stem cells in bone marrow

Examples of stem cell in a Sentence

Recent Examples on the Web Four weeks after the infusion of stem cells, Helen was strong enough to be discharged. New York Times, "At 16, She’s a Pioneer in the Fight to Cure Sickle Cell Disease," 11 Jan. 2020 Children’s Hospital Los Angeles says a freezer malfunction resulted in the loss of blood stem cells from 56 child patients. San Diego Union-Tribune, "Stem cells lost in freezer failure at Children’s Hospital LA," 27 Sep. 2019 That patient did require the recollection of stem cells, chief medical officer James Stein said. Colleen Shalby, Los Angeles Times, "Stem cells of 56 child cancer patients lost at Children’s Hospital after freezer malfunction," 26 Sep. 2019 Working in their Stanford lab, Weissman, fellow founder Ravindra Majeti, and Siddhartha Jaiswal identified the role of CD47 proteins in the progression of cancer stem cells into a more malignant form., "Target to limit purchases of hand sanitizer, disinfecting wipes," 10 Mar. 2020 President Obama reversed the policy upon taking office, but by then research had largely moved on to sources of stem cells that did not require embryo destruction. Ramesh Ponnuru, National Review, "Donald Trump’s Pro-Life Presidency," 6 Feb. 2020 One New York University study on mice found that stress decreased the number of stem cells in the base of their hair follicles. Julia Naftulin,, "Things That Make Your Pubic Hair Go Gray Sooner (and What to Do About It)," 20 Nov. 2019 According to the Alliance for Regenerative Medicine, there were two stem cell clinics in the United States in 2009. David A. Pearce, STAT, "We need better regulation of stem cell therapies, especially rogue clinics," 6 Feb. 2020 The fatty tissue in the middle and ends of your largest bones gives rise to the body’s best pinch hitters: stem cells. Popular Science, "These trippy images reveal the colorful inner lives of bones," 4 Feb. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'stem cell.' 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 stem cell

1896, in the meaning defined above

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The first known use of stem cell was in 1896

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Last Updated

1 Apr 2020

Cite this Entry

“Stem cell.” Dictionary, Merriam-Webster, Accessed 4 Apr. 2020.

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More Definitions for stem cell

stem cell


English Language Learners Definition of stem cell

technical : a simple cell in the body that is able to develop into any one of various kinds of cells (such as blood cells, skin cells, etc.)

stem cell

\ ˈstem- How to pronounce stem cell (audio) \

Medical Definition of stem cell

: an unspecialized cell capable of perpetuating itself through cell division and having the potential to give rise to differentiated cells with specialized functions Embryonic stem cells are pluripotent cells derived from the inner cell mass of the blastocyst stage of the embryo. — Carrie J. Merkle, in Essentials of Pathophysiology, 2011 … picture the bone marrow as a blood cell factory that takes a single type of precursor cell, or stem cell, and modifies it in various ways to produce all the cells that circulate in the blood.— Gina Kolata, Discover, September 1987 Recent observations are providing increasing evidence for the concept that adult stem cells are part of a natural system for tissue repair. — Darwin J. Prockop, in Essentials of Stem Cell Biology, 2006

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Rhyming Dictionary: Words that rhyme with stem cell

Spanish Central: Translation of stem cell Encyclopedia article about stem cell

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