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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
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Word History
First Known Use
1880, in the meaning defined above
Dictionary Entries Near blue-green alga
Cite this Entry
“Blue-green alga.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blue-green%20alga. Accessed 5 Nov. 2024.
Kids Definition
blue-green alga
nounˌblü-ˌgrēn-
: 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
nounLove words? Need even more definitions?
Merriam-Webster unabridged
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