- any shrub or tree belonging to the genus Alnus, of the birch family, growing in moist places in northern temperate or colder regions and having toothed, simple leaves and flowers in catkins.
- any of various trees or shrubs resembling an alder.
Origin of alder
- Kurt [kurt; German koo rt] /kɜrt; German kʊərt/, 1902–58, German chemist: Nobel Prize 1950.
Examples from the Web for alder
Salmon, tuna, sturgeon, mussels, oysters, and sable are marinated and smoked using hickory and alder wood.Become a Fried Seafood Believer at South Beach Market
Jane & Michael Stern
April 20, 2014
They have been down all the morning at the pool where the alder is, trying to catch that bull-trout.'
I wouldn't go down by the stream, Barbara—not to the pool where the alder is.
Ellen, I think I should like to have that alder tree cut down.
Mr. Alder is on other business that he had to attend to at the editor's request.Jennie Baxter, Journalist
Alder makes a fine sweet smoke, but we didn't have any alder, up here.Pluck on the Long Trail
Edwin L. Sabin
- any N temperate betulaceous shrub or tree of the genus Alnus, having toothed leaves and conelike fruits. The bark is used in dyeing and tanning and the wood for bridges, etc because it resists underwater rot
- any of several similar trees or shrubs
Word Origin and History for alder
tree related to the birch, Old English alor "alder" (with intrusive -d- added 14c.; the historical form aller survived until 18c. in literary English and persists in dialects, e.g. Lancashire owler, which is partly from Norse), from Proto-Germanic *aliso (cf. Old Norse ölr, Danish elle, Swedish al, Dutch els, German erle), from *el-, the ancient PIE name of the tree (cf. Russian olicha, Polish olcha, Latin alnus, Lithuanian alksnis).
- German chemist. He shared a 1950 Nobel Prize for discoveries concerning the structure of organic matter.