不飽和炭化水素 ふほうわたんかすいそ Meanings Noun unsaturated hydrocarbon Kanji 不 un-. Read as フ. 飽 tire of. Read as ホウ. 和 harmony 炭 carbon. Read as タン. 化 transform 水 water. Read as スイ. 素 element. Read as ソ. Jinuma: Japanese Dictionary · Word lists