mackerel
mack.er.el \'mak-(*-)r*l\ n or mackerel or mackerels [ME makerel, fr. OF] pl 1: a fish (Scomber scombrus) of the No. Atlantic that is green above with dark blue bars and silvery below, reaches a length of about 18 inches, and is one of the most important food fishes 2: a fish of the suborder (Scombroidea) to which the common mackerel belong s; esp : a comparatively small member of this group as distinguished from a bonito or tuna