EXAMPLES | WORD ORIGIN noun, plural cal·lus·es. . Pathology, Physiology a hardened or thickened part of the skin; a callosity. a new growth of osseous matter at the ends of a fractured bone, serving to unite them. Also callose. . Botany the tissue that forms over the wounds of plants, protecting the inner tissues and causing healing. a deposit on the perforated area of a sieve tube. (in grasses) a tough swelling at the base of a lemma or palea. verb (used without object), cal·lused, cal·lus·ing. verb (used with object), cal·lused, cal·lus·ing. to produce a callus or calluses on: Heavy work callused his hands. Origin of callus 1555–65;
masculine variant of
callous Related forms un·cal·lused, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for callusing conform
stiffen Examples from the Web for callusing Historical Examples of callusing Callusing can then take place in time to allow of fall planting.
It is usually better, however, to place them for several weeks in a
callusing bed before planting.
They are, therefore, stratified in a
callusing bed where moisture and temperature can be controlled.
If cuttings are buried so deep that they cannot sprout,
callusing may be hastened by placing them in a mild temperature. British Dictionary definitions for callusing noun plural -luses Also called: callosity an area of skin that is hard or thick, esp on the palm of the hand or sole of the foot, as from continual friction or pressure an area of bony tissue formed during the healing of a fractured bone botany a mass of hard protective tissue produced in woody plants at the site of an injury an accumulation of callose in the sieve tubes biotechnology a mass of undifferentiated cells produced as the first stage in tissue culture verb to produce or cause to produce a callus Word Origin for callus
C16: from Latin, variant of
callum hardened skin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for callusing n.
"hardened skin," 1560s, from Latin
callus, variant of callum "hard skin," related to callere "be hard," from PIE root *kal- "hard" (cf. Sanskrit kalika "bud," Old Irish calath "hard," Old Church Slavonic kaliti "to cool, harden").
Online Etymology Dictionary, © 2010 Douglas Harper
n. pl. cal•lus•es callosity The hard bony tissue that develops around the ends of a fractured bone during healing.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
An area of the skin that has become hardened and thick, usually because of prolonged pressure or rubbing. The hard bony tissue that develops around the ends of a fractured bone during healing.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.