convex
English
Etymology
Borrowed from Middle French convexe, from Latin convexus (“arched”).
Pronunciation
- (Received Pronunciation) IPA(key): /ˈkɒn.vɛks/, /kɒnˈvɛks/, /kənˈvɛks/
Audio (Southern England) (file) - (General American) IPA(key): /ˈkɑn.vɛks/, /kɑnˈvɛks/, /kənˈvɛks/
Adjective
convex (comparative more convex, superlative most convex)
- Curved or bowed outward like the outside of a bowl, circle, or sphere.
- 1837, William Whewell, “Earliest Stages of Astronomy”, in History of the Inductive Sciences, from the Earliest to the Present Times. […], volume I, London: John W[illiam] Parker, […]; Cambridge, Cambridgeshire: J. and J. J. Deighton, →OCLC, book III (History of Greek Astronomy), section 9 (The Globular Form of the Earth), page 150:
- [D]rops of water naturally form themselves into figures with a convex surface; […]
- (functional analysis, not comparable, of a real-valued function on the reals) having an epigraph that is a convex set.
- (geometry, not comparable, of a polygon) having no internal angles greater than 180 degrees.
- (mathematics, not comparable, of a set in Euclidean space) arranged such that for any two points in the set, a straight line between the two points is contained within the set.
Antonyms
Derived terms
- biconvex
- concavo-convex
- convex combination
- convexedly
- convex envelope
- convex function
- convex hull
- convexification
- convexify
- convexity
- convex lens
- convexly
- convexness
- convexoconcave
- convexoconvex
- convexoplane
- convex set
- double-convex
- equiconvex
- hyperconvex
- nonconvex
- plano-convex
- planoconvex
- polyconvex
- pseudoconvex
- quasiconvex
- semiconvex
- subconvex
Translations
curved or bowed outward like the outside of a bowl, circle, or sphere
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Noun
convex (plural convexes)
- Any convex body or surface.
- 1714, Royal Progress, Thomas Tickell:
- Half heaven's convex glitters with the flame.
- (gambling) A playing card made convex for use in cheating.
- Coordinate term: concave
- (gambling) A small convex mirror used to cheat by observing other players' cards.
- Synonym: shiner
- 2019, John Philip Quinn, Fools of Fortune; or, Gambling and Gamblers:
- Of all the devices for defrauding at poker, the “shiner,” or “convex” […] Modern convexes are also considerably larger than those of former days.
References
- John A. Simpson and Edmund S. C. Weiner, editors (1989), “convex”, in The Oxford English Dictionary, 2nd edition, Oxford: Clarendon Press, →ISBN.
Catalan
Related terms
Further reading
- “convex” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
Dutch
Pronunciation
- IPA(key): /kɔnˈvɛks/
Audio (file) - Hyphenation: con‧vex
- Rhymes: -ɛks
Adjective
convex (comparative convexer, superlative meest convex or convext)
Inflection
Declension of convex | ||||
---|---|---|---|---|
uninflected | convex | |||
inflected | convexe | |||
comparative | convexer | |||
positive | comparative | superlative | ||
predicative/adverbial | convex | convexer | het convext het convexte | |
indefinite | m./f. sing. | convexe | convexere | convexte |
n. sing. | convex | convexer | convexte | |
plural | convexe | convexere | convexte | |
definite | convexe | convexere | convexte | |
partitive | convex | convexers | — |
Derived terms
Descendants
- → Indonesian: konvèks
Romanian
Adjective
convex m or n (feminine singular convexă, masculine plural convecși, feminine and neuter plural convexe)
Declension
Declension of convex
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