Search Result for "dicotyledonous": 
Wordnet 3.0

ADJECTIVE (1)

1. (of a flowering plant) having two cotyledons in the seed; 



The Collaborative International Dictionary of English v.0.48:

dicotyledonous \di*cot`y*led"on*ous\
   (d[-i]*k[o^]t`[i^]*l[e^]d"[u^]n*[u^]s), a. (Bot.)
   Having two cotyledons or seed lobes; as, a dicotyledonous
   plant. Dicrotal


WordNet (r) 3.0 (2006):

dicotyledonous
    adj 1: (of a flowering plant) having two cotyledons in the seed
           [ant: monocotyledonous]