1
: hollowed or rounded inward like the inside of a bowl
a concave lens
2
: arched in : curving in
—used of the side of a curve or surface on which neighboring normals to the curve or surface converge and on which lies the chord joining two neighboring points of the curve or surface
Synonyms
Examples of concave in a Sentence
Adjective
a concave lens
Recent Examples on the Web
Jason Fields, Newsweek, 4 Dec. 2024
Underneath are two concave rubber pads to grip the frame without the worry of scratching it up and are cinched down with mini TPU straps.
—Matt Beer, Outside Online, 2 Nov. 2022
Michael Barnes, Austin American-Statesman, 10 May 2024
Unlike other split keyboards that appeal to those who like to customize everything right down to the feel of the keys, the Flow uses proprietary rubber dome switches and custom backlit concave keycaps that aren’t designed to be swapped out with third-party alternatives.
—Andrew Liszewski, The Verge, 15 Oct. 2024
See all Example Sentences for concave 
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Adjective
The objects have handles attached to either a concave bowl or a flat disk, measuring 10 to 20 millimeters across.
—Jason Fields, Newsweek, 4 Dec. 2024
Underneath are two concave rubber pads to grip the frame without the worry of scratching it up and are cinched down with mini TPU straps.
—Matt Beer, Outside Online, 2 Nov. 2022
Noun
Weber and Weber identify another common Central Texas native, the winter grape, also known as Heller's grape or Spanish grape, which looks almost exactly like the mustang, but without the concave leaves or wooly underbellies.
—Michael Barnes, Austin American-Statesman, 10 May 2024
Unlike other split keyboards that appeal to those who like to customize everything right down to the feel of the keys, the Flow uses proprietary rubber dome switches and custom backlit concave keycaps that aren’t designed to be swapped out with third-party alternatives.
—Andrew Liszewski, The Verge, 15 Oct. 2024
See all Example Sentences for concave
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Cite this Entry
“Concave.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/concave. Accessed 15 Dec. 2024.
Copy CitationMedical Definition
concave
adjective
con·cave
kän-ˈkāv, ˈkän-ˌ 
: hollowed or rounded inward like the inside of a bowl
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