cyanobacteria
predominantly photosynthetic prokaryotic organisms containing a blue pigment in addition to chlorophyll; occur singly or in colonies in diverse habitats; important as phytoplankton • Syn: blue-green algae • Derivationally related forms: cyanobacterial • Hypernyms: eubacteria, eubacterium, true bacteria • Hyponyms: nostoc, trichodesmium • Member Holonyms: class Cyanobacteria, Cyanophyceae, class Cyanophyceae
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