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white alder

noun

Definition of white alder

1a : any of several native alders (as Alnus rhombifolia) of western North America
b : gray alder
2 : any shrub or tree of the genus Clethra
3 : a southern African tree (Platylophus trifoliatus) of the family Cunoniaceae
4 : privet andromeda
5 : a winterberry (Ilex verticillata)

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First Known Use of white alder

1746, in the meaning defined at sense 1a

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