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See more synonyms for concavity on Thesaurus.com
noun, plural con·cav·i·ties for 2.
  1. the state or quality of being concave.
  2. a concave surface or thing; cavity.
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Origin of concavity

1350–1400; Middle English concavite < Late Latin concavitāt- (stem of concavitās). See con-, cave, -ity
Related formssub·con·cav·i·ty, noun, plural sub·con·cav·i·ties.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for concavity

impression, hole, indentation

Examples from the Web for concavity

Historical Examples of concavity

  • The shell was slightly concave, the concavity turned to the front.

    The Scalp Hunters

    Mayne Reid

  • And otherwise unlike a volcanic crater is the concavity itself.

    The Lone Ranche

    Captain Mayne Reid

  • It is circular, and is placed on the concavity of the ventral flexure.

  • Petals numerous, small, 1-lipped, the concavity near the base.

  • Three, however, had had their concavity partly whittled flat.

    Mohave Pottery

    Alfred L. Kroeber

British Dictionary definitions for concavity


noun plural -ties
  1. the state or quality of being concave
  2. a concave surface or thing; cavity
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for concavity


c.1400, from Old French concavité "hollow, concavity" (14c.) or directly from Latin concavitatem (nominative concavitas), from Latin concavus "hollow" (see concave).

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Online Etymology Dictionary, © 2010 Douglas Harper

concavity in Medicine


  1. A hollow or depression that is curved like the inner surface of a sphere.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.