Alder /(a̤l"dẽr)/

Al·der

Alder

n.
  1. 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. (Bot.)

Phrases & Compounds
Black alder
A European shrub (Rhamnus frangula); Alder buckthorn.

Alder

a.
  1. Of all; -- used in composition; as, alderbest, best of all, alderwisest, wisest of all. [Obs.]