[syn: horseback, ahorse, ahorseback]
The Collaborative International Dictionary of English v.0.48:
Horseback \Horse"back`\, n.
1. The back of a horse.
2. An extended ridge of sand, gravel, and boulders, in a
half-stratified condition. --Agassiz.
On horseback, on the back of a horse; mounted or riding on
a horse or horses; in the saddle.
The long journey was to be performed on horseback.
WordNet (r) 3.0 (2006):
adv 1: on the back of a horse; "he rode horseback to town";
"managed to escape ahorse"; "policeman patrolled the
streets ahorseback" [syn: horseback, ahorse,
n 1: the back of a horse
2: a narrow ridge of hills [syn: hogback, horseback]
Moby Thesaurus II by Grady Ward, 1.0:
20 Moby Thesaurus words for "horseback":
across, astraddle, astride, by horse, chine, col, comb, esker,
hogback, kame, mounted, on, on horseback, ridge, saddle,
saddleback, spine, straddle, straddle-legged, straddleback