macromolecule macromolecular • macromyelon · · · Info · Definitions · Synonyms · Characters · · macromolecule · · Text Latin · · Script 13 · · Length 6 · · Syllables Definitions · · · (noun) any very large complex molecule; found only in plants and animals. Synonyms: supermolecule. · · Noun Definition 1 Synonyms · · · supermolecule · · Synonym 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 u latin small letter u U+0075