concave

Definition from Wiktionary, a free dictionary

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Contents 1 English 1.1 Etymology 1.2 Pronunciation 1.3 Adjective 1.3.1 Antonyms 1.3.2 Translations 1.3.3 Derived terms 1.4 Noun 1.4.1 Translations 1.5 Verb 1.5.1 Translations 1.5.2 Derived terms 2 Italian 2.1 Adjective

[edit] English

[edit] Etymology

From Latin concavus.

[edit] Pronunciation

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[edit] Adjective

concave (comparative more concave, superlative most concave)

1. curved inward like the inside of a bowl

[edit] Antonyms

• convex

[edit] Translations

[edit] Derived terms

• concavely
• concaveness
• concavity

[edit] Noun

concave (plural concaves)

1. A concave surface or curve.
2. The vault of the sky.
3. 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).

4. (manufacturing) An element of a curved grid used to separate desirable material from tailings or chaff in mining and harvesting.
5. (surfing) An indentation running along the base of a surfboard, intended to increase lift.
6. (skateboarding) An indented area on the top of a skateboard, providing a position for foot placement and increasing board strength.

[edit] Translations

[edit] Verb

to concave (third-person singular simple present concaves, present participle concaving, simple past and past participle concaved)

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

[edit] Translations

[edit] Derived terms

• concaver

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[edit] Italian

[edit] Adjective

concave f.

1. Feminine plural form of concavo