Definition of Cyanobacteria in English:


Syllabification: Cy·a·no·bac·te·ri·a
Pronunciation: /ˌsīənōbakˈtirēə, sīˌanō-
  • 1A division of microorganisms that are related to the bacteria but are capable of photosynthesis. They are prokaryotic and represent the earliest known form of life on the earth.
    • Class Cyanophyceae, kingdom Eubacteria
    More example sentences
    • That is, all Cyanobacteria and algal chloroplasts are, together, all of the descendants of some unique common ancestral cyanobacterium.
    • Only Aquificales and Cyanobacteria do not present evidence of such a structuring, possibly because of a sampling effect, since only a few bacteria of these phyla have been presently sequenced.
    • The significant buildup probably began about two billion years ago, with the appearance of Cyanobacteria.
  • 1.1 (as plural noun cyanobacteria) Microorganisms of the Cyanobacteria division. Also called blue-green algae.
    More example sentences
    • Unlike any other flagellate algae, they contain phycobilins as accessory photosynthetic pigments, as do red algae and cyanobacteria.
    • We conclude that there is no evidence available to support assignment of Halysis either to chlorophyte algae or to cyanobacteria.
    • In Florida scrub, soil crusts include algae, cyanobacteria, and diatoms.


modern Latin (plural), from Greek kuaneos 'dark blue' + plural of bacterium.

More definitions of Cyanobacteria

Definition of Cyanobacteria in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
(in science fiction) navigation in outer space