callus

[ kal-uhs ]

/ ˈkæl əs /

SEE SYNONYMS FOR callus ON THESAURUS.COM

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.

to form a callus.

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; <Latin callus, masculine variant of callum;see callous

OTHER WORDS FROM callus

un·cal·lused, adjective

WORDS THAT MAY BE CONFUSED WITH callus

callous, callus

Words nearby callus

call to mind, call to order, call to quarters, call-up, call upon, callus, call waiting, calm, calmative, Calmette, calmodulin

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for callus

Wounds upon plants begin to heal by the formation of loose cellular matter which gives rise to a mass of tissue known as a callus.
The Nursery Book|Liberty Hyde Bailey
Later, the nerve may become involved in callus, or be damaged by the pressure of ill-fitting splints.
Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition.|Alexander Miles
If the center of the wound falls in, the callus cannot cover it, and an open sore remains.
The Apple-Tree|L. H. Bailey
After the bones have united, it will take some weeks to consolidate the uniting material and render the “callus,” or union, firm.
A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition)|Calvin Cutter

The callus formation indicates the favorable progress of repair, but with the fragments in faulty position.
Gunshot Roentgenograms|Clyde S. Ford

British Dictionary definitions for callus

callus

/ (ˈkæləs) /

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 Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for callus

callus

[ kăl′əs ]

n. pl. cal•lus•es

callosity

The hard bony tissue that develops around the ends of a fractured bone during healing.

Scientific definitions for callus

callus

[ kăl′əs ]

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.

单词	callus
释义	callus [ kal-uhs ] / ˈkæl əs / SEE SYNONYMS FOR callus ON THESAURUS.COM 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. to form a callus. 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; <Latin callus, masculine variant of callum;see callous OTHER WORDS FROM callus un·cal·lused, adjective WORDS THAT MAY BE CONFUSED WITH callus callous, callus Words nearby callus call to mind, call to order, call to quarters, call-up, call upon, callus, call waiting, calm, calmative, Calmette, calmodulin Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for callus Wounds upon plants begin to heal by the formation of loose cellular matter which gives rise to a mass of tissue known as a callus. The Nursery Book\|Liberty Hyde Bailey Later, the nerve may become involved in callus, or be damaged by the pressure of ill-fitting splints. Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition.\|Alexander Miles If the center of the wound falls in, the callus cannot cover it, and an open sore remains. The Apple-Tree\|L. H. Bailey After the bones have united, it will take some weeks to consolidate the uniting material and render the “callus,” or union, firm. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition)\|Calvin Cutter The callus formation indicates the favorable progress of repair, but with the fragments in faulty position. Gunshot Roentgenograms\|Clyde S. Ford British Dictionary definitions for callus callus / (ˈkæləs) / 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 Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to callus conform, strengthen, stupefy, discipline, inure, develop, callous, acclimatize, adapt, habituate, stun, steel, embitter, season, train, numb, deaden, teach, dull, stiffen Medical definitions for callus callus [ kăl′əs ] 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. Scientific definitions for callus callus [ kăl′əs ] 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.
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callus

noun, plural cal·lus·es.

verb (used without object), cal·lused, cal·lus·ing.

verb (used with object), cal·lused, cal·lus·ing.

Origin of callus

OTHER WORDS FROM callus

WORDS THAT MAY BE CONFUSED WITH callus

Words nearby callus

Example sentences from the Web for callus

British Dictionary definitions for callus

noun plural -luses

verb

Word Origin for callus

Words related to callus

Medical definitions for callus

n. pl. cal•lus•es

Scientific definitions for callus