cal·lus
noun/ˈkæləs/
/ˈkæləs/
- an area of thick hard skin on a hand or foot, usually caused by rubbing
胼胝，老茧（手、足上的硬皮） - The calluses on her palm showed how hard she had had to work.
手掌上的老茧可见她工作的辛苦程度。
Word Originmid 16th cent.: from Latin callus (more commonly callum) ‘hardened skin’. - The calluses on her palm showed how hard she had had to work.