callus
🇺🇸
/ˈkæləs/
🇬🇧
/ˈkæləs/
A hard thick area on the skin, especially on the hands or feet, formed because of continuous rubbing.
After months of playing the guitar, he had a callus on his fingers.
ギターを数ヶ月弾いた後、彼は指にタコができました。