noun Date: 1904 seawater discolored by the presence of large numbers of dinoflagellates (especially of the genera Gonyaulax and Gymnodinium ) which produce a toxin poisonous especially to many forms of marine vertebrate life and to humans who consume contaminated shellfish
RED TIDE
Meaning of RED TIDE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012