不ふ飽ほう和わ炭たん化か水すい素そMeaningsNoun1. unsaturated hydrocarbonKanji used不negative飽be full and have enough和harmony炭charcoal化transformation水water素elementaryComposed of不ふun-; non-Prefix飽ほう和わsaturation; satiationNoun炭たん化かcarbonization; carbonisationNoun水すい素そhydrogen (H)Noun