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ni·trous | \ ˈnī-trəs 
\
\Definition of nitrous
(Entry 1 of 2)
informal
: nitrous oxide He began huffing nitrous by the case, causing vivid hallucinations.— David Peisner
nitrous
adjectiveDefinition of nitrous (Entry 2 of 2)
archaic
: of, relating to, or containing niter
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Time Traveler for nitrous
The first known use of nitrous was in 1583
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