Monolid or mono eyelid or Mongolian fold (outdated incorrect term) or Epicanthic fold (technical term) or slanty eye (
derogatory term) is a single eyelid, instead of double eyelids. Monolid is not solely an Asian trait. Those who call it Asian eyes are too dumb and ignorant, usually Americans because they don't live in Europe, to know that many
Europeans and Africans have this trait too. European ethnic groups that tend to have epicanthus
relatively frequently are Scandinavians, Poles, Germans, the Irish and British.