化か学がく種しゅ同どう定ていMeaningsNoun1. chemical speciationKanji used化transformation学study種seed同same定defineComposed of化か学がくchemistryNoun種しゅkind; sort; type; class; speciesNoun同どう定ていidentifying (something as being the same as something else); identification (e.g. of a suspect)Noun