discoloration

noun

dis·​col·​or·​ation (ˌ)dis-ˌkə-lə-ˈrā-shən How to pronounce discoloration (audio)
1
: the act of discoloring : the state of being discolored
2
: a discolored spot or formation : stain

Examples of discoloration in a Sentence

Recent Examples on the Web
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The sun also helps to brighten your whites when air drying, but the key is to not air dry your clothes too long since the sun can then cause discoloration from the UV rays. Ashlyn Needham, Southern Living, 12 July 2025 Like leaf discoloration, wilting usually begins on the plant’s lower leaves. Lauren Landers, Better Homes & Gardens, 9 July 2025 Saliva and tears can also cause reddish-brown discoloration, especially in dogs with light-colored coats, known as porphyrin staining. Maria Azzurra Volpe, MSNBC Newsweek, 8 July 2025 However, the real innovation is the brand’s proprietary 2% LTN Complex, a powerful blend of tranexamic acid, lotus sprout extract, and niacinamide that targets dark spots, discoloration, and those stubborn post-acne marks that just won’t quit. Christa Joanna Lee, Allure, 3 July 2025 See All Example Sentences for discoloration

Word History

First Known Use

1545, in the meaning defined at sense 1

Time Traveler
The first known use of discoloration was in 1545

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Cite this Entry

“Discoloration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/discoloration. Accessed 19 Jul. 2025.

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