dinoflagellate Dinoflagellatae • Dinoflagellida · · · Info · Definitions · Characters · · dinoflagellate · · Text Latin · · Script 14 · · Length Definitions · · · (noun) chiefly marine protozoa having two flagella; a chief constituent of plankton. · · Noun Definition 1 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 f latin small letter f U+0066 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F t latin small letter t U+0074