Mus″tang (?), n. [Sp. musteño belonging to the graziers, strayed, wild.] (Zoöl.) The half-wild horse of the plains in Mexico, California, etc. It is small, hardy, and easily sustained.
Mustard grape(Bot.), a species of grape (Vitis candicans), native in Arkansas and Texas. The berries are small, light-colored, with an acid skin and a sweet pulp.