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Jyutping mei5 zeoi1
Pinyin wěi zhuī

Definitions (Wiktionary)
  1. noun
    caudal vertebra
  2. noun, Taiwanese-Hokkien, Zhangzhou
    rump of a fowl; uropygium

尾椎 [--]

Jyutping
Pinyin wěi zhuī

Definitions (CC-CEDICT)
  1. coccyx
  2. tailbone