concave adj : curving inward [ant: convex]

English

Etymology

From lang=la.

Pronunciation

Adjective

1. curved inward like the inside of a bowl

Antonyms

• convex

Translations

Derived terms

• concavely
• concaveness
• concavity

Noun

1. A concave surface or curve.
2. An element of a curved grid used to separate desirable material from tailings or chaff in mining and harvesting.
3. An indentation running along the base of a surfboard, intended to increase lift.
4. An indented area on the top of a skateboard, providing a position for foot placement and increasing board strength.

Verb

1. To render concave, or increase the degree of concavity.

Derived terms

• concaver

Italian

Adjective

concave

1. Feminine plural form of concavo

The word concave means curving in or hollowed inward. The term is most commonly used to refer 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.
• Concave mirror

In addition, the term concave upwards is used for convex functions, and concave downwards for concave functions.

See also

• Convex — the opposite of concave.

arched, arciform, arclike, arcual, bandy, boat-shaped, boatlike, bowed, bowl-shaped, bowlike, bowllike, cavelike, cavernous, concaved, convex, craterlike, cup-shaped, cupped, cymbiform, dish-shaped, dished, dishing, dishlike, embowed, funnel-breasted, funnel-chested, funnel-shaped, gibbose, gibbous, hollow, hollowed, humpbacked, humped, humpy, hunched, hunchy, incurved, incurving, incurvous, infundibular, infundibuliform, navicular, naviform, oxbow, retiring, retreating, saucer-shaped, scaphoid, scyphate, spoonlike, sunk, sunken, vaulted