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concavity (n.)
c. 1400, "a concave surface," from Old French concavit "hollow, concavity" (14c.) or directly from Latin concavitatem (nominative concavitas), from Latin concavus "hollow, arched, vaulted, curved," from con-, here perhaps an intensive prefix (see con-), + cavus "hollow" (from PIE root *keue- "to swell," also "vault, hole"). From 1570s as "state of being concave."
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Definitions of concavity
Dictionary entries near concavity
conation
conative
concatenate
concatenation
concave
concavity
conceal
concealment
concede
conceit
conceited