also: むーんふぇいす
noun
swollen face; puffy face
Wasei-eigo from English 'moon face'. Describes a face that is round and swollen, often due to water retention, weight gain, or medical conditions. Not a direct translation of the English medical term.
wasei-eigo (Japanese-coined English), from moon face
朝起きたら顔がムーンフェースになっていた。
When I woke up in the morning, my face was all puffy.
塩分の取りすぎでムーンフェースになることがある。
Eating too much salt can sometimes cause a puffy face.
noun
moon phase display on a watch
Refers to a small indicator on an analog watch that shows the current phase of the moon, often used to distinguish AM/PM or as a decorative complication.
この時計のムーンフェースは、夜になると星が光る仕組みだ。
The moon phase display on this watch has stars that glow at night.
Alternate interpunct spelling for the フェイス variant.
むくみ is the general Japanese term for swelling or edema, while ムーンフェース specifically describes a round, puffy facial appearance.
Wasei-eigo from English 'moon face'. The term is used in Japanese to describe a puffy or swollen face, and also for a watch complication, diverging from the English medical usage.