plural stromata
ˈstrō-mə-tə 
1
a
: a compact mass of fungal hyphae producing perithecia or pycnidia
b
: the colorless proteinaceous matrix of a chloroplast in which the chlorophyll-containing lamellae are embedded
2
a
: the supporting framework of an animal organ typically consisting of connective tissue
b
: the spongy protoplasmic framework of some cells (such as a red blood cell)
Examples of stroma in a Sentence
Recent Examples on the Web
In tumors, the stroma is the supporting tissue that surrounds cancer cells.
—
New Atlas, 18 Sep. 2025
After that comes the unsettling coda; out of the back of the ant’s tiny neck slithers a slender stroma, its surface bristling and primed to rain spores down upon the next group of unfortunate ants below.
—Doug Bierend, Outside Online, 10 Mar. 2021
But for the folks who do have them, the prostate is made up of tissue known as stroma, secretory glands that produce semen ingredients, and muscle fibers.
—Zahra Barnes, SELF, 7 Aug. 2020
The surgeon first uses a suction ring to flatten the eye in order to cut a flap in the cornea, folding back the flap back to reveal the middle section, called the stroma.
—Author: Roni Caryn Rabin, Anchorage Daily News, 12 June 2018
The surgeon first uses a suction ring to flatten the eye in order to cut a flap in the cornea, folding the flap back to reveal the middle section, called the stroma.
—New York Times, 11 June 2018
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New Atlas, 18 Sep. 2025
After that comes the unsettling coda; out of the back of the ant’s tiny neck slithers a slender stroma, its surface bristling and primed to rain spores down upon the next group of unfortunate ants below.
—Doug Bierend, Outside Online, 10 Mar. 2021
But for the folks who do have them, the prostate is made up of tissue known as stroma, secretory glands that produce semen ingredients, and muscle fibers.
—Zahra Barnes, SELF, 7 Aug. 2020
The surgeon first uses a suction ring to flatten the eye in order to cut a flap in the cornea, folding back the flap back to reveal the middle section, called the stroma.
—Author: Roni Caryn Rabin, Anchorage Daily News, 12 June 2018
The surgeon first uses a suction ring to flatten the eye in order to cut a flap in the cornea, folding the flap back to reveal the middle section, called the stroma.
—New York Times, 11 June 2018
Cite this Entry
“Stroma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stroma. Accessed 4 Nov. 2025.
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