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.
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
Standing on two legs, the blue-green robot has claw-like grippers rather than hands and can lift up to 35 pounds.
From Los Angeles Times • Dec. 17, 2025
Those sown in August are currently just tiny blue-green shoots.
From Los Angeles Times • Nov. 21, 2025
“How was your day?” she asked, peering up at me, her big blue-green eyes gentle but curious.
From "I Will Always Write Back" by Caitlin Alifirenka and Martin Ganda
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.
