n. [ by shortening from dicotyledon. ] (Bot.) same as dicotyledon.
Syn. -- dicotyledon, dicot. [ PJC ]

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 ]

n. (Bot.) same as Dicotyledonae.
Syn. -- Dicotyledones, class Dicotyledones, class Dicotyledonae, Magnoliopsida, class Magnoliopsida. [ WordNet 1.5 ]

a. (Bot.) Having two cotyledons or seed lobes; as, a dicotyledonous plant.