Definition of concave

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< concatenate

concavity >

(click for a larger image)
concave
left to right: biconcave, plano-concave, and concavo-convex lenses

con·cave

n-k

, k

) KEY

ADJECTIVE:

Curved like the inner surface of a sphere.

NOUN:

A concave surface, structure, or line.

TRANSITIVE VERB:
con·caved, con·cav·ing, con·caves

To make concave.

ETYMOLOGY:
Middle English, from Latin concavus : com-, intensive pref. ; see com- + cavus, hollow; see keu- in Indo-European roots

OTHER FORMS:
con·cavely(Adverb), con·caveness(Noun)

Thesaurus: synonyms for concave

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