noun Date: 1882 a carangid food fish ( Trachurus symmetricus ) of the Pacific coast of America that is iridescent green or bluish above and silvery below
JACK MACKEREL
Meaning of JACK MACKEREL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012