Definition of Microcystis in US English:

Microcystis

noun

Botany
  • A genus of colony-forming cyanobacteria (blue-green algae) (order Chroococcales), some species of which produce toxic blooms in fresh water; (also microcystis) a member of this genus.

Origin

Late 19th century; earliest use found in Bulletin of the Torrey Botanical Club. From scientific Latin Microcystis from micro- + ancient Greek κύστις bladder.

Pronunciation

Microcystis

/ˌmʌɪkrə(ʊ)ˈsɪstɪs/