concave
English
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Etymology
Borrowed from Old French concave, from Latin concavus.
Pronunciation
Audio (US): (file)
Adjective
concave (comparative more concave, superlative most concave)
- curved like the inner surface of a sphere or bowl
- (geometry, not comparable, of a polygon) not convex; having at least one internal angle greater than 180 degrees..
- (functional analysis, not comparable, of a real-valued function on the reals) satisfying the property that all segments connecting two points on the function's graph lie below the function.
- hollow; empty
- (Can we date this quote by Shakespeare and provide title, author’s full name, and other details?)
- as concave […] as a worm-eaten nut
- (Can we date this quote by Shakespeare and provide title, author’s full name, and other details?)
Antonyms
Derived terms
Translations
curved inward
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Noun
concave (plural concaves)
- A concave surface or curve.
- The vault of the sky.
- One of the celestial spheres of the Ptolemaic or geocentric model of the world.
- Aristotle makes [Fire] to move to the concave of the Moon. - Thomas Salusbury (1661).
- (manufacturing) An element of a curved grid used to separate desirable material from tailings or chaff in mining and harvesting.
- (surfing) An indentation running along the base of a surfboard, intended to increase lift.
- (skateboarding) An indented area on the top of a skateboard, providing a position for foot placement and increasing board strength.
Translations
A concave surface or curve
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Verb
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Derived terms
Translations
To render concave, or increase the degree of concavity.
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French
Etymology
From Old French concave, borrowed from Latin concavus.
Adjective
concave (plural concaves)
Italian
Adjective
concave
Latin
Adjective
(deprecated template usage) concave
Categories:
- English terms borrowed from Old French
- English terms derived from Old French
- English terms derived from Latin
- English terms with audio links
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- English adjectives
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- Requests for date/Shakespeare
- English nouns
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- en:Manufacturing
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- French terms inherited from Old French
- French terms derived from Old French
- French terms borrowed from Latin
- French terms derived from Latin
- French lemmas
- French adjectives
- Italian non-lemma forms
- Italian adjective forms
- Latin non-lemma forms
- Latin adjective forms