washing soda

American  

noun

1. sodium carbonate.

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washing soda British  

noun

1. the crystalline decahydrate of sodium carbonate, esp when used as a cleansing agent

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Etymology

Origin of washing soda

First recorded in 1840–50

Compare meaning

How does washing-soda compare to similar and commonly confused words? Explore the most common comparisons:

• washing soda vs. baking soda

Example Sentences

Also, Wang says, the washing soda used in stripping can combine with deposits in hard water to create additional residue on fabrics.

From Washington Post

On Earth, sodium carbonate is often known as washing soda or soda ash.

From New York Times

The culprit turned out to be sodium carbonate, or washing soda.

From National Geographic

Why buy laundry detergent when you can just grate some soap and put it in a jar with washing soda?

From The Guardian

Add the grated soap to 250ml each of washing soda and borax, mix well.

From The Guardian