dinoflagellate
A group of single-celled aquatic organisms, many with two flagella; includes both photosynthetic and heterotrophic species. Used in biology and environmental science contexts.
Dinoflagellates are important primary producers in marine ecosystems.
A species of dinoflagellate that causes red tides was identified.
Red tide, a phenomenon often caused by blooms of dinoflagellates, but not synonymous with the organism itself.
Plankton is a broader category; dinoflagellates are one type of plankton.
dinoflagellates
Compound of 渦 (うず, 'whirlpool'), 鞭毛 (べんもう, 'flagellum'), and 藻 (そう, 'algae'), describing the organism's characteristic spinning motion and flagella.