Dictionary
gym•no•din•i•um
Pronunciation: ( jim"nu-din'ē-um), [key]—
n.,
—pl. -din•i•aPronunciation: (-din'ē•u). [key]
any marine or freshwater dinoflagellate of the genus
Gymnodinium, certain species of which cause red tide.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.