'Curbing' definitions:

Definition of 'curbing'

noun

An edge between a sidewalk and a roadway consisting of a line of curbstones (usually forming part of a gutter) [syn: curb, curbing, kerb]

From: GCIDE

Curb \Curb\ (k[^u]rb), v. t. [imp. & p. p. Curbed (k[^u]rbd); p. pr. & vb. n. Curbing.] [F. courber to bend, curve, L.curvare, fr. curvus bent, curved; cf. Gr. kyrto`s curved. Cf. Curve.]
1. To bend or curve. [Obs.] [1913 Webster]
Crooked and curbed lines. --Holland. [1913 Webster]
2. To guide and manage, or restrain, as with a curb; to bend to one's will; to subject; to subdue; to restrain; to confine; to keep in check. [1913 Webster]
Part wield their arms, part curb the foaming steed. --Milton. [1913 Webster]
Where pinching want must curb thy warm desires. --Prior. [1913 Webster]
3. To furnish with a curb, as a well; also, to restrain by a curb, as a bank of earth. [1913 Webster]