washing soda
noun
1.
sodium carbonate
(def 2).
Origin
1840-50
Examples from the web for
washing soda
Residents collected and pressed the minerals into blocks that were shipped by train to be sold as
washing soda
.
Use soap flakes and borax or
washing soda
and borax instead of detergent.
Large amounts are used in the non-ferrous metals industry and in the production of bicarbonate and
washing soda
.
British Dictionary definitions for
washing soda
washing soda
noun
1.
the crystalline decahydrate of sodium carbonate, esp when used as a cleansing agent