concave
English
Bottom: a spoon with its concave side up.
Etymology
Category:English terms derived from Proto-Indo-European#CONCAVECategory:English terms derived from the Proto-Indo-European root *ḱewh₁-#CONCAVEFrom Middle EnglishCategory:English terms inherited from Middle English#CONCAVECategory:English terms derived from Middle English#CONCAVE concave, from Old FrenchCategory:English terms derived from Old French#CONCAVE concave, from LatinCategory:English terms derived from Latin#CONCAVE concavus.
Pronunciation
- (UK) IPA(key): /ˈkɒn.keɪv/, /kɒnˈkeɪv/Category:English 2-syllable words#CONCAVECategory:English 2-syllable words#CONCAVECategory:English terms with IPA pronunciation#CONCAVE
- (US) IPA(key): /ˈkɑn.keɪv/, /kɑnˈkeɪv/, /kənˈkeɪv/Category:English 2-syllable words#CONCAVECategory:English 2-syllable words#CONCAVECategory:English 2-syllable words#CONCAVECategory:English terms with IPA pronunciation#CONCAVE
Adjective
concave (comparative more concave, superlative most concave)Category:English lemmas#CONCAVECategory:English adjectives#CONCAVECategory:English entries with incorrect language header#CONCAVECategory:Pages with entries#CONCAVECategory:Pages with 4 entries#CONCAVE
- Curved like the inner surface of a sphere or bowl.
- (geometryCategory:en:Geometry#CONCAVE, not comparable, of a polygon) Not convex; having at least one internal angle greater than 180 degrees.
- (functional analysisCategory:en:Functional analysis#CONCAVE, 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.
- c. 1598–1600 (date written), William Shakespeare, “As You Like It”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act III, scene iv]:
- as concave […] as a worm-eaten nutCategory:English terms with quotations#CONCAVE
Synonyms
- concavous (obsolete)
Antonyms
Derived terms
Translations
Noun
concave (plural concaves)Category:English lemmas#CONCAVECategory:English nouns#CONCAVECategory:English countable nouns#CONCAVECategory:English entries with incorrect language header#CONCAVECategory:Pages with entries#CONCAVECategory:Pages with 4 entries#CONCAVE
- 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).
- (manufacturingCategory:en:Manufacturing#CONCAVE) An element of a curved grid used to separate desirable material from tailings or chaff in mining and harvesting.
- (surfingCategory:en:Surfing#CONCAVE) An indentation running along the base of a surfboard, intended to increase lift.
- (skateboardingCategory:en:Skateboarding#CONCAVE) An indented area on the top of a skateboard, providing a position for foot placement and increasing board strength.
- (gamblingCategory:en:Gambling#CONCAVE) A playing card made concave for use in cheating.
- Coordinate term: convex
Translations
Category:Entries with translation boxes#CONCAVE
|
Verb
concave (third-person singular simple present concaves, present participle concaving, simple past and past participle concaved)Category:English lemmas#CONCAVECategory:English verbs#CONCAVECategory:English entries with incorrect language header#CONCAVECategory:Pages with entries#CONCAVECategory:Pages with 4 entries#CONCAVE
Derived terms
Translations
French
Etymology
Inherited from Old FrenchCategory:French terms inherited from Old French#CONCAVECategory:French terms derived from Old French#CONCAVE concave, borrowed from LatinCategory:French terms borrowed from Latin#CONCAVECategory:French terms derived from Latin#CONCAVE concavus.
Pronunciation
Adjective
concave (plural concaves)Category:French lemmas#CONCAVECategory:French adjectives#CONCAVECategory:French entries with incorrect language header#CONCAVECategory:Pages with entries#CONCAVECategory:Pages with 4 entries#CONCAVE
Descendants
- → Turkish: konkav
Further reading
- “concave”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012
Italian
Adjective
concaveCategory:Italian non-lemma forms#CONCAVECategory:Italian adjective forms#CONCAVECategory:Italian entries with incorrect language header#CONCAVECategory:Pages with entries#CONCAVECategory:Pages with 4 entries#CONCAVE
Latin
Adjective
concaveCategory:Latin non-lemma forms#CONCAVECategory:Latin adjective forms#CONCAVECategory:Latin entries with incorrect language header#CONCAVECategory:Pages with entries#CONCAVECategory:Pages with 4 entries#CONCAVE