エンジェル係数 エンジェルけいすう Also written エンゼルけいすう, エンゼル係数 Meanings Noun proportion of income spent on one's children (literally: angel coefficient) (pun on エンゲル係数) See also: エンゲル係数 (エンゲルけいすう). Kanji 係 connection. Read as ケイ. 数 number. Read as スウ. Word lists Jocular Jinuma: Japanese Dictionary · Word lists