cytokinin cytokinetic • cytol · · · Info · Definitions · Synonyms · Characters · · cytokinin · · Text Latin · · Script 9 · · Length 4 · · Syllables Definitions · · · (noun) any of a class of plant hormones that promote cell division and delay the senescence of leaves. Synonyms: kinin. · · Noun Definition 1 Synonyms · · · kinin · · Synonym 1 Characters · · c latin small letter c U+0063 i latin small letter i U+0069 k latin small letter k U+006B n latin small letter n U+006E o latin small letter o U+006F t latin small letter t U+0074 y latin small letter y U+0079