n. [动]腰鞭毛虫(属于腰鞭毛目的原生动物,一种海生单细胞生物)

[ noun ]
chiefly marine protozoa having two flagella; a chief constituent of plankton
<noun.animal>

dinoflagellate \dinoflagellate\ n.
a member of the {Dinoflagellata}, chiefly marine protozoa
having two flagella. The dinoflagellates form a chief
constituent of plankton.
[WordNet 1.5] ||