washing soda


Definition of washing soda

: a transparent crystalline hydrated sodium carbonate

Examples of washing soda in a Sentence

Recent Examples on the Web Add 1/4 cup borax, 1/4 cup washing soda, and 1/2 cup detergent to the hot water. Jessica Bennett, Better Homes & Gardens, "Laundry Stripping Is the Grossly Satisfying Way to Get Linens Extra Clean," 20 May 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'washing soda.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of washing soda

1847, in the meaning defined above

Keep scrolling for more

Learn More about washing soda

Time Traveler for washing soda

Time Traveler

The first known use of washing soda was in 1847

See more words from the same year

Statistics for washing soda

Last Updated

4 Jun 2020

Cite this Entry

“Washing soda.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/washing%20soda. Accessed 3 Jul. 2020.

Keep scrolling for more

More Definitions for washing soda

washing soda


English Language Learners Definition of washing soda

: a chemical that is added to water to help clean very dirty clothes, towels, sheets, etc.

washing soda


Medical Definition of washing soda

: a transparent crystalline hydrated sodium carbonate

called also sal soda

Comments on washing soda

What made you want to look up washing soda? Please tell us where you read or heard it (including the quote, if possible).


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

A More Exception(al) Quiz

  • hot dog  hot dog  hot dog  hot dog cat
  • Which of the following words is not a synonym for ‘a young person’?
Spell It

Can you spell these 10 commonly misspelled words?


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!