Ar"bor , n. [Written also arbour.]
[L., a tree, a beam.] 1. (Bot.) A tree, as distinguished from a shrub.
2. [Cf. F. arbre.]
(Mech.) (a) An axle or spindle of a
wheel or opinion. (b)
A mandrel in lathe turning. Knight.
Arbor Day, a day appointed for planting trees and shrubs.
[U.S.]
Ar"bor (&?;), n. [OE.
herber, herbere, properly a garden of herbs, F. herbier, fr. L. herbarium. See Herb, and cf. Herbarium.]
A kind of latticework formed of, or covered with, vines, branches
of trees, or other plants, for shade; a bower. Sir P. Sidney.