washing soda

noun

: a transparent crystalline hydrated sodium carbonate

Examples of washing soda in a Sentence

Recent Examples on the Web
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Utah State University Cooperative Extension publishes a similar version using two cups of grated soap, two cups of borax and two cups of washing soda, combined with two gallons of water. Ryan Brennan may 13, Kansas City Star, 13 May 2026 The basic homemade laundry detergent recipe relies on three workhorses: bar soap, borax and washing soda. Ryan Brennan may 13, Miami Herald, 13 May 2026 Additionally, washing soda saponifies fat and alcohol prevents streaks. Shagun Khare, The Spruce, 23 Feb. 2026 Use Borax and Washing Soda Add one-fourth cup of borax and one-fourth cup of washing soda to the washer drum. Mary Marlowe Leverette, Southern Living, 10 Nov. 2025 This powerful powder is made from natural ingredients such as baking soda, washing soda, and citric acid for a gentle yet effective clean. Amber Smith, Discover Magazine, 22 Apr. 2023

Word History

First Known Use

1847, in the meaning defined above

Time Traveler
The first known use of washing soda was in 1847

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Cite this Entry

“Washing soda.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/washing%20soda. Accessed 21 May. 2026.

Kids Definition

washing soda

noun
: a transparent crystalline sodium carbonate combined chemically with water

Medical Definition

washing soda

noun
: a transparent crystalline hydrated sodium carbonate

called also sal soda

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