cal·los·i·ty

[kuh-los-i-tee]
noun, plural cal·los·i·ties.
1.
a callous condition.
2.
Botany. a hardened or thickened part of a plant.
3.
Pathology, callus ( def 1a ).

Origin:
1375–1425; late Middle English calosite < Late Latin callōsitās, equivalent to callōs(us) callous + -itās -ity

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
callosity (kəˈlɒsɪtɪ) [Click for IPA pronunciation guide]
 
n , pl -ties
1.  hardheartedness
2.  another name for callus

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Callosity is always a great word to know.
So is green algae. Does it mean:
female reproductive organ which produces eggs in bryophytes, ferns and most gymnosperms
group of mostly aquatic eukaryotic organisms which conduct photosynthesis and make their own food
American Heritage
Medical Dictionary

callosity cal·los·i·ty (kə-lŏs'ĭ-tē)
n.
A localized thickening and enlargement of the horny layer of the skin. Also called callus, keratoma, poroma, tyloma.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
No significant plantar callosity formation was noted.
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