the world > food and drink > food > providing or receiving food > feeding animals > [noun] > feeding horses > horse's feed-bag (4)
A bag or sack containing or intended for oats; spec. a horse's nosebag. Now rare (chiefly English regional (northern) in later use).
A strong canvas or leather bag containing fodder, hung from a horse's head to allow it to feed; the contents of such a bag. Also figurative.
Chiefly in Spanish-speaking or Spanish-influenced areas of the western United States: a horse's nosebag.