blue-green algae

Noun blue-green algae has 1 sense

• blue-green algae(n = noun.animal) cyanobacteria - predominantly photosynthetic prokaryotic organisms containing a blue pigment in addition to chlorophyll; occur singly or in colonies in diverse habitats; important as phytoplankton;
is a kind of eubacteria, eubacterium, true bacteria
is a member of class cyanobacteria, class cyanophyceae, cyanophyceae
has particulars: nostoc, trichodesmium