U+7664 "癤" CJK Unified Ideograph-# Unicode Character
U+7664 "癤" CJK Unified Ideograph-# is a Chinese character (hanzi) that primarily refers to a boil, carbuncle, or furuncle, a painful, pus-filled skin infection typically caused by bacterial inflammation of hair follicles. Historically and in modern usage, it appears in Traditional Chinese medical texts and general vocabulary to describe skin ailments, such as in the term "癤子" (jiē zi, meaning a boil or small abscess). The character is composed of the radical "疒" (illness or disease) on the left, indicating its medical context, and the phonetic component "節" (jié, meaning joint or section) on the right. In Unicode, it is classified under the CJK Unified Ideographs block, representing a standardized encoding for this traditional character, which is now less common in Simplified Chinese but may still be encountered in medical or classical writings.