horseback

[ hawrs-bak ]
/ ˈhɔrsˌbæk /

noun

the back of a horse.
Geology. a low, natural ridge of sand or gravel; an esker. Compare hogback.

adverb

on horseback: to ride horseback.

adjective

made or given in a casual or speculative way; approximate or offhand: a horseback estimate on the construction costs.

Origin of horseback

1350–1400; Middle English. See horse, back1

Example sentences from the Web for horseback

British Dictionary definitions for horseback

horseback
/ (ˈhɔːsˌbæk) /

noun

  1. a horse's back (esp in the phrase on horseback)
  2. (as modifier)horseback riding