Ar"bor*ous (&?;), a. Formed by trees. [Obs.]

From under shady, arborous roof.

Milton.

Ar"bor vine` (&?;). A species of bindweed.

||Ar"bor vi"tæ (&?;). [L., tree of life.] 1. (Bot.) An evergreen tree of the cypress tribe, genus Thuja. The American species is the T. occidentalis.

2. (Anat.) The treelike disposition of the gray and white nerve tissues in the cerebellum, as seen in a vertical section.

Ar"bus*cle (&?;), n. [L. arbuscula small tree, shrub, dim. of arbor tree.] A dwarf tree, one in size between a shrub and a tree; a treelike shrub. Bradley.

Ar*bus"cu*lar (&?;), a. Of or pertaining to a dwarf tree; shrublike. Da Costa.

Ar*bus"tive (&?;), a. [L. arbustivus, fr. arbustum place where trees are planted.] Containing copses of trees or shrubs; covered with shrubs. Bartram.

{ Ar"bu*tus (&?;), Ar"bute (&?;), } n. [L. arbutus, akin to arbor tree.] The strawberry tree, a genus of evergreen shrubs, of the Heath family. It has a berry externally resembling the strawberry; the arbute tree.

Trailing arbutus (Bot.), a creeping or trailing plant of the Heath family (Epigæa repens), having white or usually rose-colored flowers with a delicate fragrance, growing in small axillary clusters, and appearing early in the spring; in New England known as mayflower; -- called also ground laurel. Gray.

Arc (&?;), n. [F. arc, L. arcus bow, arc. See Arch, n.] 1. (Geom.) A portion of a curved line; as, the arc of a circle or of an ellipse.

2. A curvature in the shape of a circular arc or an arch; as, the colored arc (the rainbow); the arc of Hadley's quadrant.

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