不可欠脂肪酸 ふかけつしぼうさん Meanings Noun essential fatty acid; EFA See also: 必須脂肪酸 (ひっすしぼうさん). Kanji 不 un-. Read as フ. 可 possible 欠 lack. Read as ケツ. 脂 fat 肪 fat. Read as ボウ. 酸 acid. Read as サン. Word lists Chemistry Jinuma: Japanese Dictionary · Word lists