Definition of concave
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
Definition of concave
: a concave line or surface
Recent Examples of concave from the Web
Yet the ultrasonic probe was 5 millimeters in diameter — considerably larger than the punctures — and had a rather blunt, concave end.
Broad Ken is more filled out than Original Ken, his torso remaining blockish where Original’s goes concave.
Rather than use a single concave mirror, Mr. Nelson, along with the physicist Terry Mast and the engineer George Gabor, proposed using 36 smaller hexagonal mirrors, arranged in a honeycomb-like pattern, to make one large one.
The left-most is a POV-style hat with a nice concave shape that provides a good resting place for the thumb.
The underside of the concave foreign-side could be easily lit by LED illumination.
Multiple sterling silver concave dome rings; prices upon request.
In the 1850s, the continent, Gilpin had thought, was a great fertile bowl rimmed by mountains, its concave interior destined to one day become the seat of empire.
Featuring an immersive concave video booth decorated with kaleidoscopic imagery, festival attendees will be filmed for 7 seconds, with their videos being retrieved digitally on iPads.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'concave'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
CONCAVE Defined for English Language Learners
Definition of concave for English Language Learners
: having a shape like the inside of a bowl : curving inward
CONCAVE Defined for Kids
Definition of concave for Students
: hollow or rounded inward like the inside of a bowl
Medical Definition of concave
: hollowed or rounded inward like the inside of a bowl
Seen and Heard
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