Any of numerous flowering plants having two cotyledons in the seed, pollen grains with three pores, and usually the capacity for secondary growth, leaves with reticulate venation, and flower parts that are in multiples of four or five.
An angiosperm having two cotyledons in the seed, leaves with a network of veins radiating from a central main vein, flower parts in multiples of four or five, and a ring of vascular cambium in the stem. In contrast to most monocotyledons, eudicotyledons undergo secondary growth. Eudicotyledons are the largest angiosperm group; they include most cultivated plants and many trees.
Origin of eudicotyledon
- eu– true (since the eudicotyledons form a clade excluding certain other dicotyledonous groups, such as the magnoliids) dicotyledon
From American Heritage Dictionary of the English Language, 5th Edition