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concavity

[kon-kav-i-tee] /kɒnˈkæv ɪ ti/
noun, plural concavities for 2.
1.
the state or quality of being concave.
2.
a concave surface or thing; cavity.
Origin
1350-1400
1350-1400; Middle English concavite < Late Latin concavitāt- (stem of concavitās). See con-, cave, -ity
Related forms
subconcavity, noun, plural subconcavities.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for sub-concavity

concavity

/kɒnˈkævɪtɪ/
noun (pl) -ties
1.
the state or quality of being concave
2.
a concave surface or thing; cavity
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
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Word Origin and History for sub-concavity

concavity

n.

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

Online Etymology Dictionary, © 2010 Douglas Harper
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sub-concavity in Medicine

concavity con·cav·i·ty (kŏn-kāv'ĭ-tē)
n.
A hollow or depression that is curved like the inner surface of a sphere.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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