English

Definition of callus noun from the Oxford Advanced Learner's Dictionary

 

callus

 noun
noun
BrE BrE//ˈkæləs//
 
; NAmE NAmE//ˈkæləs//
 
Skin
 
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an area of thick hard skin on a hand or foot, usually caused by rubbing The calluses on her palm showed how hard she had had to work. See related entries: Skin Word Origin mid 16th cent.: from Latin callus (more commonly callum) ‘hardened skin’.
See the Oxford Advanced American Dictionary entry: callus