dicot definition plants
diâ¢cotâ¢yâ¢leâ¢don. any flowering plant of the class Dicotyledones having two embryonic seed leaves, flower parts in fours or fives, and net-veined leaves: includes most broad-leaved flowering trees and plants. diâ¢cot`yâ¢leâ²donâ¢ous, adj.