stain
noun
a discoloration produced by foreign matter having penetrated into or chemically reacted with a material; a spot not easily removed.
staining
-
present participleof stain.present participle
A verb form that is used in progressive verb constructions and may also function as a modifier or a gerund.
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.
It doesn’t come on a school-issued bun, nor does it come with the staining might of tomato sauce and ground beef.
From The Wall Street Journal ● Jul. 28, 2026
No doubt she tried in some cases, staining the Justice Department in the process.
From Slate ● Apr. 4, 2026
To overcome this obstacle, the researchers designed a patent-pending staining approach that attaches traceable silver and bromine markers to widely used cellulose- and latex-based binders in graphite- and silicon-based anodes.
From Science Daily ● Feb. 20, 2026
Harald PrÜss of the German Center for Neurodegenerative Diseases and the Charité University Hospital of Berlin is a close collaborator of Tebartz van Elst—and his go-to person for staining rodent brain slices for autoantibodies.
From Science Magazine ● May 15, 2024
Packets of tea were floating in the folds of the crumpled mainsail that hung down through the top hatch, staining the water in brown clouds.
From "The Voyage Of The Frog" by Gary Paulsen
