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bleaching powder
noun
: a white powder consisting chiefly of calcium hydroxide, calcium chloride, and calcium hypochlorite and used as a bleach, disinfectant, or deodorant
Examples of bleaching powder in a Sentence
Recent Examples on the Web
Remove Bathroom Stains with Bleach Use a bleaching powder for cleaning stains on the sink or countertop.
—Megan Boettcher, Better Homes & Gardens, 4 Aug. 2022
Mix a tablespoon bleaching powder with 1 gallon warm water and stir to dissolve.
—Megan Boettcher, Better Homes & Gardens, 4 Aug. 2022
The steamship England, which cleared from Queenstown on January 12th, with 200 passengers on board, was obliged to put back to harbor in consequence of the breaking, during a heavy storm, of a number of barrels of bleaching powder in the hold.
—Dan Schlenoff, Scientific American, 26 Jan. 2021
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Word History
First Known Use
1805, in the meaning defined above
Dictionary Entries Near bleaching powder
Cite this Entry
“Bleaching powder.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bleaching%20powder. Accessed 10 Nov. 2024.
Medical Definition
bleaching powder
noun
bleach·ing powder
ˌblē-chiŋ-
: a white powder consisting chiefly of calcium hydroxide, calcium chloride, and calcium hypochlorite used as a bleach, disinfectant, or deodorant
called also chloride of lime, chlorinated lime
More from Merriam-Webster on bleaching powder
Britannica.com: Encyclopedia article about bleaching powder
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