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.
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
Instead of the previous blue-green algae, the new green algae is "just taking over," Paerl said.
From Barron's ● Jun. 21, 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
These nutrients make "harmful" blue-green algae more likely which can be dangerous to people and animals.
From BBC ● May 20, 2026
The bleak walls have unsightly patches of blue-green mold.
From "Purple Hibiscus" by Chimamanda Ngozi Adichie
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.
