CONCAVE
/ˈkɒŋkeɪv/
14
Scrabble
18
WWF
C(3) O(1) N(1) C(3) A(1) V(4) E(1)
NWL/TWL ✓ Collins ✓ WWF ✓
Definition
/ˈkɒŋkeɪv/
noun
- 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).”
- An element of a curved grid used to separate desirable material from tailings or chaff in mining and harvesting.
- An indentation running along the base of a surfboard, intended to increase lift.
verb
- To render concave, or increase the degree of concavity.
adjective
- Curved like the inner surface of a sphere or bowl
- (of a polygon) not convex; having at least one internal angle greater than 180 degrees.
- (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
Source: Wiktionary
