convex
EnglishEdit
Bottom: a spoon with its concave side up.
EtymologyEdit
Borrowed from Middle French convexe, from Latin convexus (“arched”).
PronunciationEdit
- (Received Pronunciation) IPA(key): /ˈkɒn.vɛks/, /kɒnˈvɛks/, /kənˈvɛks/
Audio (UK) (file) - (General American) IPA(key): /ˈkɑn.vɛks/, /kɑnˈvɛks/, /kənˈvɛks/
AdjectiveEdit
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.
AntonymsEdit
Derived termsEdit
- 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
TranslationsEdit
curved or bowed outward like the outside of a bowl, circle, or sphere
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NounEdit
convex (plural convexes)
- Any convex body or surface.
- 1714, Thomas Tickell, Royal Progress
- Half heaven's convex glitters with the flame.
- 1714, Thomas Tickell, Royal Progress
- (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.
ReferencesEdit
- John A. Simpson and Edmund S. C. Weiner, editors (1989), “convex”, in The Oxford English Dictionary, 2nd edition, Oxford: Clarendon Press, →ISBN.
CatalanEdit
EtymologyEdit
PronunciationEdit
AdjectiveEdit
convex (feminine convexa, masculine plural convexos, feminine plural convexes)
Related termsEdit
Further readingEdit
- “convex” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
DutchEdit
EtymologyEdit
Borrowed from French convexe, from Latin convexus.
PronunciationEdit
AdjectiveEdit
convex (comparative convexer, superlative meest convex or convext)
InflectionEdit
Inflection 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 termsEdit
DescendantsEdit
- → Indonesian: konvèks
RomanianEdit
EtymologyEdit
Borrowed from French convexe, from Latin convexus.
AdjectiveEdit
convex m or n (feminine singular convexă, masculine plural convecși, feminine and neuter plural convexe)
DeclensionEdit
Declension of convex
singular | plural | ||||||
---|---|---|---|---|---|---|---|
masculine | neuter | feminine | masculine | neuter | feminine | ||
nominative/ accusative |
indefinite | convex | convexă | convecși | convexe | ||
definite | convexul | convexa | convecșii | convexele | |||
genitive/ dative |
indefinite | convex | convexe | convecși | convexe | ||
definite | convexului | convexei | convecșilor | convexelor |