U+80DD "胝" CJK Unified Ideograph-# Unicode Character

U+80DD "胝" CJK Unified Ideograph-# is a Chinese character (hanzi) that primarily denotes a callus or thick, hardened skin on the hands or feet, often resulting from friction or repeated pressure. In traditional Chinese medical contexts, it can also refer more specifically to a type of skin lesion or corn. The character is composed of the radical for flesh or body part, 月 (肉), and the phonetic component 氐, which hints at its pronunciation, which in Mandarin pinyin is "zhī" and in Cantonese is "zi1" or "dai2" depending on the usage. Although not highly common in everyday modern writing, it appears in specialized vocabulary related to dermatology or descriptions of physical labor.