blue-green algae
Americanplural noun
plural noun
Etymology
Origin of blue-green algae
First recorded in 1895–1900
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A spokesperson for Armagh City, Banbridge and Craigavon Borough Council said watersports activities and open-water swimming at Craigavon Lakes were suspended on 21 July due to the presence of blue-green algae.
From BBC ● Jul. 26, 2026
Instead of the previous blue-green algae, the new green algae is "just taking over," Paerl said.
From Barron's ● Jun. 21, 2026
Suspecting an environmental link, the scientists and officials considered various possible culprits, from a rare moose-borne parasite to blue-green algae blooms to Agent Orange sprayed on the province in the 1970s.
From BBC ● Jan. 10, 2026
Last year, scientists in the country announced they had launched successful trials spraying the soil with cyanobacteria, also known as "blue-green algae" -- a method that helps retain moisture and facilitate tree rooting.
From Barron's ● Dec. 18, 2025
Once the photosynthetic cells had appeared, very probably counterparts of today’s blue-green algae, the future respiratory mechanism of the earth was set in place.
From "The Lives of a Cell" by Lewis Thomas
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
