U+5558 "啘" CJK Unified Ideograph-# Unicode Character
U+5558 "啘" CJK Unified Ideograph-# is a Chinese character that primarily functions as a phonetic component in various historical or less common words, often related to sounds or vocal expressions. Its most prominent usage occurs in traditional medical contexts, where it is part of the term "啘呕" (wān ǒu), an archaic variant describing retching or vomiting, though it is not commonly used in modern standard Mandarin. The character itself can be decomposed into the radical "口" (mouth) on the left, indicating speech or sound, and "宛" (wǎn) on the right, which provides the phonetic hint for its pronunciation as "wān" or "yuàn" in some classical readings. Due to its rarity, "啘" is classified as a non-core character, primarily encountered in classical texts or specialized dictionaries rather than everyday writing.