| 释义 |
polycotyledon polycotyledon (ˌpɒlɪˌkɒtɪˈliːdən) or polycotn (Plants) any of various plants, esp gymnosperms, that have or appear to have more than two cotyledons ˌpolyˌcotyˈledonous adjpol•y•cot•y•le•don (ˌpɒl iˌkɒt lˈid n)
n. a plant having more than two cotyledons, as certain gymnosperms. [1750–60] pol`y•cot`y•le′don•ous, adj. |