內雙眼皮 [内双－－]

Jyutping noi6 soeng1 ngaan5 pei4
Pinyin nèi shuāng yǎn pí

Definitions (Wiktionary)
  1. noun
    the infold type of double eyelid crease, where the height of the upper lid crease is lower than the epicanthic fold
    (syn.) 內雙, 内双