1. of, relating to, or belonging to plants that have two cotyledons (seed leaves) and typically have net-veined leaves, flower parts in fours or fives, and a woody stem
Usage: botanical term; commonly used in plant classification and botany

Examples

• Roses are dicotyledonous plants with characteristic net-veined leaves.
• The dicotyledonous structure of beans makes them useful for studying plant embryology.
• Most flowering trees and shrubs are dicotyledonous species.
• Dicotyledonous plants typically have taproots rather than fibrous roots.
• In biology class, students learned to identify dicotyledonous plants by their leaf venation patterns.
• Beans and peas are common dicotyledonous vegetables used in experiments.