(n) comprising seed plants that produce an embryo with paired cotyledons and net-veined leaves; divided into six (not always well distinguished) subclasses (or superorders): Magnoliidae and Hamamelidae (considered primitive); Caryophyllidae (an early and distinctive offshoot); and three more or less advanced groups: Dilleniidae; Rosidae; Asteridae, Syn.class Magnoliopsida, Dicotyledonae, Magnoliopsida, class Dicotyledonae, class Dicotyledones
n. [ Pref. di- + cotyledon. ] (Bot.) A plant whose seeds divide into two seed lobes, or cotyledons, in germinating. Syn. -- dicot, dicotyl. [ 1913 Webster ]
n. (Bot.) a class of plants comprising those seed plants that produce an embryo with two cotyledons and net-veined leaves; divided into six (not always well distinguished) subclasses (or superorders): Magnoliidae and Hamamelidae (considered primitive); Caryophyllidae (an early and distinctive offshoot); and three more or less advanced groups: Dilleniidae; Rosidae; Asteridae. Syn. -- Dicotyledones, class Dicotyledones, class Dicotyledonae, Magnoliopsida, class Magnoliopsida. [ WordNet 1.5 ]
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