: any of various colored or transparent mineral silicates crystallizing in monoclinic forms that readily separate into very thin leaves
Examples of mica in a Sentence
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Moisturizing and radiance-boosting thanks to hyaluronic acid and reflective micas in the formula, this creamy blush can be swiped on lightly for a subtle flush or layered for a contoured look.
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Jenny Berg, Vogue, 18 Mar. 2025
In the new formula, Givenchy swapped in kaolin clay and mica, which give it a shimmery, highlighter-esque finish.
—Lindy Segal, Glamour, 7 Mar. 2025
When the mica freezes and thaws, the panel concluded, its fluctuating size roils the surrounding concrete.
—The Editors, JSTOR Daily, 31 Dec. 2024
While these work to reveal a radiant, supple complexion, mica, and powder pigments promote a smooth, even base.
—Kiana Murden, Vogue, 31 Jan. 2025
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Jenny Berg, Vogue, 18 Mar. 2025
In the new formula, Givenchy swapped in kaolin clay and mica, which give it a shimmery, highlighter-esque finish.
—Lindy Segal, Glamour, 7 Mar. 2025
When the mica freezes and thaws, the panel concluded, its fluctuating size roils the surrounding concrete.
—The Editors, JSTOR Daily, 31 Dec. 2024
While these work to reveal a radiant, supple complexion, mica, and powder pigments promote a smooth, even base.
—Kiana Murden, Vogue, 31 Jan. 2025
See All Example Sentences for mica
Cite this Entry
“Mica.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mica. Accessed 22 Apr. 2025.
Copy CitationKids Definition
mica
noun
mi·ca
ˈmī-kə 
: any of various minerals that contain silicon and can be separated easily into thin often transparent sheets
Medical Definition
mica
noun
mi·ca
ˈmī-kə
: any of various colored or transparent mineral silicates crystallizing in monoclinic forms that readily separate into very thin leaves
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