Cyanobacteria

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    plural of cyanobacterium. form-of, plural

    "Oxygen levels on Earth skyrocketed 2.4 billion years ago, when cyanobacteria evolved photosynthesis: the ability to convert water and carbon dioxide into carbohydrates and waste oxygen using solar energy."

  2. 2
    predominantly photosynthetic prokaryotic organisms containing a blue pigment in addition to chlorophyll; occur singly or in colonies in diverse habitats; important as phytoplankton wordnet

Synonyms

All synonyms
blue green algaeblue-green algae

Example

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"Phosphorus provides nourishment for cyanobacteria (blue algae) which multiply and release toxins."

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.