noun, plural cal·los·i·ties.

a callous condition.
Botany. a hardened or thickened part of a plant.
Pathology. callus(def 1a).

Origin of callosity

1375–1425; late Middle English calosite < Late Latin callōsitās, equivalent to callōs(us) callous + -itās -ity Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for callosity

Historical Examples of callosity

British Dictionary definitions for callosity


noun plural -ties

another name for callus (def. 1)
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

callosity in Medicine




A localized thickening and enlargement of the horny layer of the skin.callus keratoma poroma tyloma
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.