| 释义 |
alder /ˈɔːldə /(also alder tree) nounA widely distributed tree of the birch family which has toothed leaves and bears male catkins and woody female cones.- Genus Alnus, family Betulaceae: many species.
The train passes mature hardwood maple, beech, yellow birch, hickory and American linden trees, and softwood alders and willows weeping over a calm pond....- Trees which are especially suited for erosion control include varieties of birch, cedar, alder, fir, pine and redwood.
- In Prussia the coal of the alder, limetree, poplar, elder, willow, hemp, and hazel is used for powder.
Origin Old English alor, aler, of Germanic origin; related to German Erle; forms spelled with d are recorded from the 14th century. Rhymes Balder, Calder |