green alga
noun
plural green algae also green algas
: any of a division (Chlorophyta) of green-colored algae that have chloroplasts and occur especially in fresh water
Example Sentences
Recent Examples on the Web The algae partner can be either a green alga or a blue-green alga, known as cyanobacteria. 
Howard Garrett, Dallas News, 17 June 2020
Howard Garrett, Dallas News, 17 June 2020 Word History
First Known Use
1843, in the meaning defined above
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