1

nitrous

noun ni·trous \ ˈnī-trəs \

Definition of nitrous

informal
: nitrous oxide
  • He began huffing nitrous by the case, causing vivid hallucinations.
  • —David Peisner

First Known Use of nitrous

1977

in the meaning defined above

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2

nitrous

adjective

Definition of nitrous

archaic
: of, relating to, or containing niter

Origin and Etymology of nitrous

New Latin nitrosus, from Latin, full of natron, from nitrum natron — more at niter


Medical Dictionary

nitrous

adjective ni·trous \ ˈnī-trəs \

medical Definition of nitrous

: of, relating to, or containing nitrogen especially with a lower valence than in corresponding nitric compounds

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