washing soda

noun

Definition of washing soda

: a transparent crystalline hydrated sodium carbonate

First Known Use of washing soda

1847

in the meaning defined above

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WASHING SODA Defined for English Language Learners

washing soda

Definition of washing soda for English Language Learners

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


Medical Dictionary

washing soda

noun

medical Definition of washing soda

: a transparent crystalline hydrated sodium carbonate called also sal soda

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