Ju"rel (?), n. (Zoöl.) A yellow carangoid fish of the Atlantic and Gulf coasts (Caranx chrysos), most abundant southward, where it is valued as a food fish; -- called also hardtail, horse crevallé, jack, buffalo jack, skipjack, yellow mackerel, and sometimes, improperly, horse mackerel. Other species of Caranx (as C. fallax) are also sometimes called jurel.