noun al·nus \ˈalnəs\

Definition of alnus

  1. 1 capitalized :  a genus of alders (family Betulaceae) found in the north temperate zone and the Andes and having toothed leaves, a 4-parted calyx, and a woody conelike fruit

  2. 2 plural -s :  any plant of the genus Alnus

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Origin and Etymology of alnus

New Latin, from Latin, alder — more at alder

First Known Use: 1733

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capable of being understood in two ways

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