nitrous acid

noun

Definition of nitrous acid 

: an unstable acid HNO2 known only in solution or in the form of its salts or esters

First Known Use of nitrous acid

1788, in the meaning defined above

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The first known use of nitrous acid was in 1788

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More Definitions for nitrous acid

nitrous acid

noun

Medical Definition of nitrous acid 

: an unstable acid HNO2 known only in solution or in the form of its salts

More from Merriam-Webster on nitrous acid

Britannica.com: Encyclopedia article about nitrous acid

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