concave

1 of 2

adjective

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

concave

2 of 2

noun

con·​cave ˈkän-ˌkāv How to pronounce concave (audio)
: a concave line or surface

Examples of concave in a Sentence

Adjective a concave lens
Recent Examples on the Web
Adjective
To begin with, Georgian writer-director George Sikharulidze’s debut feature places us mercilessly right into the last place on earth most of us would ever want to find ourselves: the lanky, concave frame and warped, self-loathing mindset of an incipient incel. Jessica Kiang, Variety, 3 July 2024 The buttons are easy to operate thanks to their clicky feel and concave indentation, though backlighting would have been helpful for low-light situations. PCMAG, 25 June 2024
Noun
On the outside is a stylish titanium shell with a concave design that comes in a choice of three finish options. Paul Ridden, New Atlas, 10 July 2024 Thirty-foot-wide (10-meter-wide) boulders, as well as concave spots and ridges, litter its surface. Ashley Strickland, CNN, 6 July 2024 See all Example Sentences for concave 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'concave.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Adjective and Noun

Middle English, from Latin concavus, from com- + cavus hollow — more at cave

First Known Use

Adjective

15th century, in the meaning defined at sense 1

Noun

1552, in the meaning defined above

Time Traveler
The first known use of concave was in the 15th century

Dictionary Entries Near concave

Cite this Entry

“Concave.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/concave. Accessed 20 Jul. 2024.

Kids Definition

concave

adjective
con·​cave
kän-ˈkāv,
ˈkän-ˌkāv
: hollowed or rounded inward like the inside of a bowl
concave lens
concavity
kän-ˈkav-ət-ē
noun

Medical Definition

concave

adjective
: hollowed or rounded inward like the inside of a bowl

More from Merriam-Webster on concave

Last Updated: - Updated example sentences
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