noun, plural (especially collectively) am·ber·jack, (especially referring to two or more kinds or species) am·ber·jacks.
- any of several yellow to coppery fork-tailed fishes of the genus Seriola, as S. dumerili of warm Atlantic waters.
noun
- any of several large carangid fishes of the genus Seriola, esp S. dumerili, with golden markings when young, occurring in tropical and subtropical Atlantic waters