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
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The patient is then infused with healthy stem cells that travel to the bone marrow.
—
David Armstrong, CNN Money, 10 May 2025
And so, on a rainy late April day in Seattle, Castelli stood at a lectern before his friends and family and defended his doctoral thesis — about using stem cells to express antibodies against HIV — with his scientific life at a crossroads.
—Evan Bush, NBC news, 8 May 2025
Lose a tail and stem cells in the spinal cord sync up like an orchestra, accelerating their division in unison to rebuild the missing structure.
—Scott Travers, Forbes.com, 1 May 2025
In addition to its freeze on certifying illnesses, the program can no longer enroll new members or approve life-saving treatments like chemotherapy, lung transplants or stem cell therapy.
—Liz Neporent, ABC News, 30 Apr. 2025
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David Armstrong, CNN Money, 10 May 2025
And so, on a rainy late April day in Seattle, Castelli stood at a lectern before his friends and family and defended his doctoral thesis — about using stem cells to express antibodies against HIV — with his scientific life at a crossroads.
—Evan Bush, NBC news, 8 May 2025
Lose a tail and stem cells in the spinal cord sync up like an orchestra, accelerating their division in unison to rebuild the missing structure.
—Scott Travers, Forbes.com, 1 May 2025
In addition to its freeze on certifying illnesses, the program can no longer enroll new members or approve life-saving treatments like chemotherapy, lung transplants or stem cell therapy.
—Liz Neporent, ABC News, 30 Apr. 2025
See All Example Sentences for stem cell
Cite this Entry
“Stem cell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stem%20cell. Accessed 21 May. 2025.
Copy CitationMedical 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
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
Gina Kolata, DiscoverRecent 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
Darwin J. Prockop, in Essentials of Stem Cell BiologyLove words? Need even more definitions?
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