blue-green
Americannoun
Etymology
Origin of blue-green
First recorded in 1850–55
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
The natural option, a blue-green microalgae called spirulina, proved to be too costly and thick in consistency, causing factory equipment to clog during candy production.
From Salon ● Jun. 29, 2026
Nevertheless, a cheeky portion of blue-green paint contorts itself into a standing position in the corner, fighting against the weight that urges the rest of the work Earthward.
From The Wall Street Journal ● May 29, 2026
The show featured red, orange, yellow, pink, blue, blue-green and white diamonds, ranging from 5.11 carats of the Moussaieff Red to 203.04 carats of the De Beers Millennium Star.
From Barron's ● May 13, 2026
“In here,” she said, towing him toward the blue-green room.
From "The City of Ember" by Jeanne DuPrau
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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.