chemical substance chemical science • chemical terrorism · · · Info · Definitions · Synonyms · Characters · · chemical substance · · Text Common · · Latin · · Scripts 18 · · Length 5 · · Syllables Definitions · · · (noun) material produced by or used in a reaction involving changes in atoms or molecules. Synonyms: chemical, chemical substance. · · Noun Definition 1 Synonyms · · · chemical · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075