- mackerel - flesh of very important usually small (to 18 in) fatty Atlantic fish
--1 is a kind of saltwater fish
--1 is a part of common mackerel, shiner, Scomber scombrus
--1 has particulars: Spanish mackerel; smoked mackerel- mackerel - any of various fishes of the family Scombridae
--2 is a kind of scombroid, scombroid fish
--2 is a member of Scombridae, family Scombridae
--2 has particulars:common mackerel, shiner, Scomber scombrus; Spanish mackerel, Scomber colias; chub mackerel, tinker, Scomber japonicus; wahoo, Acanthocybium solandri; Spanish mackerel - mackerel - any of various fishes of the family Scombridae