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.
She said Greenpeace had painted over rocks and soil, staining them.
From BBC ● Aug. 21, 2026
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
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
Her burned bureau and the black soot staining the wall reignited her past trauma.
From Los Angeles Times ● Oct. 31, 2025
A few weeks later, Lil comes into the store to see me, her eyes red- rimmed, tears staining her cheeks.
From "Orphan Train" by Christina Baker Kline
