blue-black
Americanadjective
Other Word Forms
Etymology
Origin of blue-black
First recorded in 1815–25
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.
One especially noticeable blue-black patch in the rougher section of the valley is believed to be volcanic ash that was later redistributed by Martian winds, as seen in the accompanying 3D perspective views.
From Science Daily ● May 15, 2026
The large blue-black wasps with bright orange wings are “a much better way to estimate the spider population than trying to actually find the spiders, which are intensely secretive,” Yanega said.
From Los Angeles Times ● Aug. 4, 2025
At this moment, the sky will turn from light blue to dark blue-black, and you will be able to suddenly see a few stars in the sky along with the planet Mercury.
From Salon ● Apr. 27, 2023
He bathes a nib in a bottle of blue-black ink and hands a fountain pen to a customer, who dashes off his signature.
From Washington Post ● Mar. 14, 2023
His jaws were blue-black and he looked like a gangster in the movies.
From "The Heart is a Lonely Hunter" by Carson McCullers
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.
