n. 拱起的背部, 鬃丘

[ noun ]
a narrow ridge of hills
<noun.object>

Hogback \Hog"back`\, n.
1. (Arch.) An upward curve or very obtuse angle in the upper
surface of any member, as of a timber laid horizontally;
-- the opposite of {camber}.

2. (Naut.) See {Hogframe}.

3. (Geol.) A ridge formed by tilted strata; hence, any ridge
with a sharp summit, and steeply sloping sides.

Hogframe \Hog"frame`\, n. (Steam Vessels)
A trussed frame extending fore and aft, usually above deck,
and intended to increase the longitudinal strength and
stiffness. Used chiefly in American river and lake steamers.
Called also {hogging frame}, and {hogback}.