blue-green alga

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English[edit]

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Noun[edit]

blue-green alga (plural blue-green algae)

  1. Any member of the cyanobacteria; a primitive photosynthetic organism similar to bacteria which is thought to have generated the first oxygen in the Earth's atmosphere.

Translations[edit]

Usage notes[edit]

  • The term alga is nowadays of improper use, since true algae are eucaryotic organisms, and not bacteria at all.

See also[edit]