noun🔗ShareCyanobactéries, cyanophycéesAny of very many photosynthetic prokaryotic microorganisms, of phylum Cyanobacteria, once known as blue-green algae."The pond water contained a large amount of cyanobacteria, making it look green and murky. "L'eau de l'étang contenait une grande quantité de cyanobactéries, ce qui lui donnait un aspect vert et trouble.organismmicroorganismbiologyenvironmentnatureplantscienceChat with AIVocabulary GamePractice Reading