1

callus

noun cal·lus \ ˈka-ləs \

Definition of callus

1 :a thickening of or a hard thickened area on skin or bark
2 :a mass of exudate and connective tissue that forms around a break in a bone and is converted into bone in healing
3 :soft tissue that forms over a wounded or cut plant surface

Recent Examples of callus from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'callus.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of callus

Latin


2

callus

verb

Definition of callus

intransitive verb
:to form callus
transitive verb
:to cause callus to form on

First Known Use of callus

1824


CALLUS Defined for English Language Learners

callus

noun

Definition of callus for English Language Learners

  • : a hard and thickened area on the skin and especially on the hands or feet


CALLUS Defined for Kids

callus

noun cal·lus \ ˈka-ləs \

Definition of callus for Students

plural calluses
:a hard thickened area on the skin and especially on the hands and feet

Medical Dictionary

callus

noun cal·lus \ ˈkal-əs \

medical Definition of callus

1 :a thickening of or a hard thickened area on skin
2 :a mass of exudate and connective tissue that forms around a break in a bone and is converted into bone in the healing of the break


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