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hyponitrous acid

American  

noun

  1. an unstable, crystalline acid, H 2 N 2 O 2 .

hyponitrous acid British  
/ ˌhaɪpəˈnaɪtrəs /

noun

  1. a white soluble unstable crystalline acid: an oxidizing and reducing agent. Formula: H 2 N 2 O 2

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of hyponitrous acid

First recorded in 1820–30

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.