green_algae has definitions from the fields of biology,botany
[ noun ] (biology,botany) algae that are clear green in color; often growing on wet ricks or damp wood or the surface of stagnant water



Used in print

(Ross E. McKinney and Howard Edde, "Aerated...)

It was possible to maintain aerobic conditions in the pond by regular additions of sodium_nitrate until the temperature decreased and the algae population changed from blue-green to green_algae .