pl. -·jacks· or -·jack·
any of several large food and game yellowtail fishes (genus Seriola) found in the warm waters of all oceans
Origin of amberjackamber + jack (fish): from its color
nounpl. amberjack or am·ber·jacks
Any of various food and game fishes of the genus Seriola, found in temperate and tropical marine waters.
Origin of amberjackamber + jack, a fish.