portobello
noun
por·to·bel·lo
ˌpȯr-tə-ˈbe-(ˌ)lō 
variants
or less commonly portabella
or portabello
plural portobellos also portobellas
: a large dark mature cultivated mushroom noted for its meaty texture that is of the same variety of button mushroom as the cremini
Examples of portobello in a Sentence
Recent Examples on the Web
The spongy underside of the cap has pores—rather than gills as seen in Agaricales mushrooms such as shiitake and portobello—which are the openings to tubes through which spores exit the mushroom.
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Encyclopedia Britannica, 1 May 2026
Ceviche, mango habanero aguachile and vegan portobello mushroom tacos from $12-$16 are some of the food choices.
—Carlos Rico, San Diego Union-Tribune, 17 Feb. 2026
Add portobello mushrooms, salt, and pepper.
—Cathy Thomas, Oc Register, 26 Jan. 2026
For example, one cup of raw white mushrooms offers 2 grams of protein, while the same amount of raw portobello mushrooms has nearly 3 grams.
—Kirsten Nunez, Martha Stewart, 24 Jan. 2026
See All Example Sentences for portobello
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Encyclopedia Britannica, 1 May 2026
Ceviche, mango habanero aguachile and vegan portobello mushroom tacos from $12-$16 are some of the food choices.
—Carlos Rico, San Diego Union-Tribune, 17 Feb. 2026
Add portobello mushrooms, salt, and pepper.
—Cathy Thomas, Oc Register, 26 Jan. 2026
For example, one cup of raw white mushrooms offers 2 grams of protein, while the same amount of raw portobello mushrooms has nearly 3 grams.
—Kirsten Nunez, Martha Stewart, 24 Jan. 2026
See All Example Sentences for portobello
Cite this Entry
“Portobello.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/portobello. Accessed 7 May. 2026.
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