From Longman Dictionary of Contemporary Englishcalluscal‧lus /ˈkæləs/ noun [countable] MIan area of thick hard skin the calluses on his hands
Examples from the Corpus
callus• calluses on her feet• Treat calluses by rubbing with a callus file, a pumice stone, or a hard-skin remover.• According to reports from Indiana, Booth had a painful callus on her foot.• For the union to be successful the grafted vine forms a protective callus around the wound while the two plants seek compatibility.• A slight callus marked Gomez's right index finger.• Trent imagined him holding a golf club but the callus didn't fit.• Hours of daily practice on the firing range had formed the callus.Origin callus (1500-1600) Latin 