Simple Definition of alder
: a type of tree or shrub that grows in wet ground in some northern countries
Full Definition of alder
: any of a genus (Alnus) of toothed-leaved trees or shrubs of the birch family that have catkins which become woody, that typically grow in cool moist ground, and that have wood used especially in turnery; also : its wood
Origin of alder
Middle English, from Old English alor; akin to Old High German elira alder, Latin alnus
First Known Use: 14th century
Definition of Alder
Kurt 1902–1958 Ger. chem.
ALDER Defined for Kids
Definition of alder for Students
: a tree or shrub related to the birches that has toothed leaves and grows in moist soil
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