stem cell

noun Cell Biology.

a cell that upon division replaces its own numbers and also gives rise to cells that differentiate further into one or more specialized types, as various B cells and T cells.

Nearby words

stellula, stellular, stellwag's sign, stem, stem canker, stem cell, stem cell leukemia, stem christie, stem duchy, stem ginger, stem reptile

Origin of stem cell

First recorded in 1880–85

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for stem cell

It launches curricular reviews and stem-cell initiatives; it raises money, and buys up property (or at least, it used to).
The Truth Behind 'The Social Network'|Rebecca Davis O'Brien|September 8, 2010|DAILY BEAST
Many women who undergo IVF either discard their leftover embryos or donate them for stem-cell research.
10 Ways to Have a Baby|Doree Shafrir|September 13, 2009|DAILY BEAST
Maybe they would, but this has played absolutely no part in the stem-cell debate.
New York Times' New Columnist Is Full of It|Michael Kinsley|March 16, 2009|DAILY BEAST
Now, Rich writes, “when Barack Obama ended the Bush stem-cell policy last week, there were no such overheated theatrics.”
Who Made Frank Rich God?|Lee Siegel|March 16, 2009|DAILY BEAST

I am often criticized for previously voting for John Kerry and my support of stem-cell research.
My Beef With Ann Coulter|Meghan McCain|March 9, 2009|DAILY BEAST

British Dictionary definitions for stem cell

stem cell

noun

histology an undifferentiated cell that gives rise to specialized cells, such as blood cells

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for stem cell

stem cell

n.

An unspecialized cell that gives rise to a specific specialized cell, such as a blood cell.

Science definitions for stem cell

stem cell

An unspecialized cell found in fetuses, embryos, and some adult body tissues that has the potential to develop into specialized cells or divide into other stem cells. Stem cells from fetuses or embryos can develop into any type of differentiated cells, while those found in mature tissues develop only into specific cells. Stem cells can potentially be used to replace tissue damaged or destroyed by disease or injury, but the use of embryonic stem cells for this purpose is controversial. Also called progenitor cell

Culture definitions for stem cell

stem cell

A cell from which a variety of other cells can develop through the process of cellular differentiation. Stem cells can produce only a certain group of cells (as with skin stem cells) or any cell in the body (as with embryonic stem cells).

Note

A major controversy involves the question of whether nonembryonic stem cells should be used for medical purposes.