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stem cell

A stem cell is a simple cell that can duplicate itself over and over, providing new cells that can turn into cells with a specific purpose. (noun)

An example of a stem cell is a cell that can reproduce itself many times into cells which become blood cells.

See stem cell in Webster's New World College Dictionary

Biol. any of a number of rudimentary cells that replicate repeatedly, providing a continuous source of new cells that differentiate into specialized cells

See stem cell in American Heritage Dictionary 4

noun

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

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