Horse"back` (?), n.

1.

The back of a horse.

2.

An extended ridge of sand, gravel, and bowlders, 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. Prescott.

 

© Webster 1913.

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