blue-green algae blue-green • blue-grey · · · Info · Definitions · Synonyms · Characters · · blue-green algae · · Text Common · · Latin · · Scripts 16 · · Length 4 · · Syllables Definitions · · · (noun) predominantly photosynthetic prokaryotic organisms containing a blue pigment in addition to chlorophyll; occur singly or in colonies in diverse habitats; important as phytoplankton. Synonyms: cyanobacteria, blue-green algae. · · Noun Definition 1 Synonyms · · · cyanobacteria · · Synonym 1 Characters · · space U+0020 - hyphen-minus U+002D a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 g latin small letter g U+0067 l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072 u latin small letter u U+0075