noun, plural cal·lus·es.
- 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.
- 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.
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Origin of callus
OTHER WORDS FROM callusun·cal·lused, adjective
WORDS THAT MAY BE CONFUSED WITH calluscallous, callus
Example sentences from the Web for callus
Calluses [that were] painful when he danced … and a bad fungus that was all over his feet and into his flesh.
Let's have another look at his hand, to see if there are any calluses.The Professor at the Breakfast Table|Oliver Wendell Holmes (Sr.)
But then he took her hand and felt its fine warmth, the calluses he remembered from all those months ago, and he felt better.Makers|Cory Doctorow
I accepted the calluses as of long time and a matter of course.The Jacket (The Star-Rover)|Jack London
But if we give it up, the calluses disappear; and if we meddle with it again, we miss the novelty and get the blisters.The Autocrat of the Breakfast-Table|Oliver Wendell Holmes
British Dictionary definitions for callus
noun plural -luses
- a mass of hard protective tissue produced in woody plants at the site of an injury
- an accumulation of callose in the sieve tubes