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alder Line breaks: alder
Pronunciation: /ˈɔːldə/
(also alder tree)

Definition of alder in English:


A 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
Example sentences
  • 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.


Old English alor, aler, of Germanic origin; related to German Erle; forms spelled with d are recorded from the 14th century.

Words that rhyme with alder

Balder, Calder
Definition of alder in:
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