blue-green alga


plural blue-green algae also blue-green algas

Examples of blue-green alga in a Sentence

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

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'blue-green alga.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1880, in the meaning defined above

Time Traveler
The first known use of blue-green alga was in 1880

Dictionary Entries Near blue-green alga

Cite this Entry

“Blue-green alga.” Dictionary, Merriam-Webster, Accessed 17 Jun. 2024.

Kids Definition

blue-green alga

: any of a major group of microorganisms that typically live in water and undergo photosynthesis and that are now usually classified as bacteria or sometimes as plants

called also cyanobacterium

Medical Definition

blue-green alga

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