- 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 gwa- in Indo-European roots.