释义 |
ul·ma·ce·ae \ˌəlˈmāsēˌē\ noun plural Usage: capitalized Etymology: New Latin, from Ulmus, type genus + -aceae : a family of trees and shrubs (order Urticales) distinguished by the alternate stipulate pinnately veined simple leaves and small apetalous perfect or unisexual flowers — see celtis, planera, trema, ulmus |