plant hormone plant hopper • plant house · · · Info · Definitions · Synonyms · Characters · · plant hormone · · Text Common · · Latin · · Scripts 13 · · Length 3 · · Syllables Definitions · · · (noun) (botany) a plant product that acts like a hormone. Synonyms: phytohormone, plant hormone, growth regulator. · · Noun Definition 1 Synonyms · · · phytohormone · · Synonym 1 growth regulator · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 h latin small letter h U+0068 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074