noun Date: 1873 an anadromous clupeid fish ( Alosa aestivalis ) of the Atlantic coast of North America having a dark blue or bluish-gray back
BLUEBACK HERRING
Meaning of BLUEBACK HERRING in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012