Alder

n. type of tree

Alder is the common name of a genus of flowering plants (Alnus) belonging to the birch family (Family Betulaceae). The genus comprises about 30 species of monoecious trees and shrubs, few reaching large size, distributed throughout the North Temperate zone, and in the New World also along the Andes southwards to Chile.
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Al·der, Kurt 1902-1958. German chemist. He shared a 1950 Nobel Prize for discoveries concerning the structure of organic matter. [more]Alder - Community and Resources

Noun
1. wood of any of various alder trees; resistant to underwater rot; used for bridges etc
(hypernym) wood
(substance-holonym) alder tree
2. north temperate shrubs or trees having toothed leaves and conelike fruit; bark is used in tanning and dyeing and the rot-resistant wood
(synonym) alder tree
(hypernym) tree
(hyponym) common alder, European black alder, Alnus glutinosa, Alnus vulgaris
(member-holonym) Alnus, genus Alnus

(n.)
A tree, usually growing in moist land, and belonging to the genus Alnus. The wood is used by turners, etc.; the bark by dyers and tanners. In the U. S. the species of alder are usually shrubs or small trees.
  

(a.)
Alt. of Aller