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stem cell
noun
: 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
Key Ingredients: Chantecaille’s mask is enriched with plant stem cells, four peptides, tensing agents, and nourishers to smooth and lift the skin.
—Kiana Murden, Vogue, 9 Jan. 2025
But amidst a global epidemic of loneliness, fewer people want to be cocooned in a clinic undergoing DNA testing and stem cell treatments.
—Jen Murphy, Condé Nast Traveler, 20 Dec. 2024
The researchers have tested the technique on mammalian cells ranging from neural stem cells, and pancreatic cancer cells to fibroblasts and HeLa cancer cells.
—The Physics Arxiv Blog, Discover Magazine, 2 Dec. 2024
Surgeries and stem cells Be forewarned, some topics in The Edge of Sentience are difficult.
—Ars Technica, 30 Nov. 2024
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Word History
First Known Use
1896, in the meaning defined above
Dictionary Entries Near stem cell
Cite this Entry
“Stem cell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stem%20cell. Accessed 18 Jan. 2025.
Kids Definition
stem cell
noun
: a simple cell that can become a cell (as a blood cell or skin cell) with a special function
Medical Definition
stem cell
noun
: 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
… 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
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
More from Merriam-Webster on stem cell
Britannica.com: Encyclopedia article about stem cell
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