blastema
noun
blas·te·ma
bla-ˈstē-mə 
plural blastemas or blastemata
bla-ˈstē-mə-tə
: a mass of undifferentiated cells capable of growth and differentiation
Examples of blastema in a Sentence
Recent Examples on the Web
Within the first few days after the injury, a blastema—a mass of heterogeneous cells—formed at the wound site.
—
Jacek Krywko, ArsTechnica, 26 June 2025
Most cells making up the blastema are not stem cells from the bulb that migrate to the tip.
—Elizabeth Rayne, Ars Technica, 3 Jan. 2024
What determines which cells migrate into a blastema, and which stay put?
—Amber Dance, Smithsonian Magazine, 31 Jan. 2020
The first phase of the Pentagon’s plan to regrow soldiers’ limbs is complete; scientists managed to turn human skin into the equivalent of a blastema — a mass of undifferentiated cells that can develop into new body parts.
—Noah Shachtman, WIRED, 25 Mar. 2009
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Jacek Krywko, ArsTechnica, 26 June 2025
Most cells making up the blastema are not stem cells from the bulb that migrate to the tip.
—Elizabeth Rayne, Ars Technica, 3 Jan. 2024
What determines which cells migrate into a blastema, and which stay put?
—Amber Dance, Smithsonian Magazine, 31 Jan. 2020
The first phase of the Pentagon’s plan to regrow soldiers’ limbs is complete; scientists managed to turn human skin into the equivalent of a blastema — a mass of undifferentiated cells that can develop into new body parts.
—Noah Shachtman, WIRED, 25 Mar. 2009
Cite this Entry
“Blastema.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blastema. Accessed 4 Nov. 2025.
Copy CitationMedical Definition
blastema
noun
blas·te·ma
bla-ˈstē-mə
plural blastemas also blastemata
-mət-ə
: a mass of living substance capable of growth and differentiation
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