concave meaning
ENUS
WConcave
- The word concave means curving in or hollowed inward, as opposed to convex. The former may be used in reference to:
- Concave lens, a lens with inward-curving (concave) surfaces
- Concave polygon, a polygon which is not convex
- Concave function, a type of function which is related to convex functions
- In addition, the term concave upwards is used for convex functions, and concave downwards for concave functions.
- Concave mirror
- Concave set
- Concave football boot, a football boot company
FR concave
- NounPLconcavesPREcon-
- 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.
- A concave surface or curve.
- VerbSGconcavesPRconcavingPT, PPconcaved
- AdjectiveCOMmore concaveSUPmost 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.
- curved like the inner surface of a sphere or bowl.
- More Examples
- Used in the Middle of Sentence
- A few bright and beautiful stars gemmed the wide concave of heaven [ … ] .
- Used in the Middle of Sentence
Definition of concave in English Dictionary
- Part-of-Speech Hierarchy
- Adjectives
- Nouns
- Countable nouns
- Countable nouns
- Verbs
- Adjectives
Source: Wiktionary