cotyledon cotylar • cotyledonal · · · Info · Definitions · Synonyms · Characters · · cotyledon · · Text Latin · · Script 9 · · Length Definitions · · · (noun) embryonic leaf in seed-bearing plants. Synonyms: seed leaf. · · Noun Definition 1 Synonyms · · · seed leaf · · Synonym 1 Characters · · c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 l latin small letter l U+006C 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