red tide red tape • red trillium · · · Info · Definitions · Characters · · red tide · · Text Common · · Latin · · Scripts 8 · · Length 2 · · Syllables Definitions · · · (noun) seawater that is discolored by large numbers of certain dinoflagellates that produce saxitoxin. Synonyms: red tide. · · Noun Definition 1 Characters · · space U+0020 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 r latin small letter r U+0072 t latin small letter t U+0074