- a freshwater blue-green alga (genus Anabaena), often growing in reservoirs, that may make the water taste or smell fishy
- a mass of such algae
Origin of anabaenaModern Latin from Classical Greek anabainein: see Anabasis
Any of various freshwater cyanobacteria of the genus Anabaena that sometimes occur in drinking water and cause a bad taste and odor.
Origin of anabaenaNew Latin Anabaena genus name from Greek anabainein to go up ana- ana- bainein to go ; see gwā- in Indo-European roots.