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ENGLISH · A WORD WITH POSSIBILITIES

nitrous.

Pertaining to or composed of nitre; having the properties of nitre, bitter.

7 characters2 syllables approx.English language

Meaning & usage

adj/ˈnaɪtɹəs/
  1. Pertaining to or composed of nitre; having the properties of nitre, bitter.

    historical · not-comparable
  2. Of, relating to, or derived from nitrogen, especially in which the valence of the nitrogen is lower than that of a corresponding nitric species.

    not-comparable
  3. Of or relating to nitrous acid or its derivatives.

    not-comparable
  4. Having a sharp odor like ammonia or nitric acid.

    not-comparable
Where this word comes from

From Middle French nitreux, and its source, Latin nitrōsus (“nitrose”). Doublet of nitroso. By surface analysis, nitro- + -ous.

noun/ˈnaɪtɹəs/
  1. Nitrous oxide.

    informal · uncountable
  2. The system in some racing vehicles which pumps nitrous oxide into the engine to improve performance.

    informal · uncountable
Where this word comes from

From Middle French nitreux, and its source, Latin nitrōsus (“nitrose”). Doublet of nitroso. By surface analysis, nitro- + -ous.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.