English Reference

Word

nitrous

Phoneticsni·trous

US/ˈnɪtɹəs/

UK/nˈaɪtɹəs/

Definition

adj. relating to a chemical compound made of nitrogen and oxygen. It is often used to describe a gas that makes things burn faster.

adj. relating to or containing nitrous oxide, a chemical compound consisting of two nitrogen atoms and one oxygen atom. Often used in technical contexts to describe the properties of this specific gas.

Examples

“The engine uses nitrous to increase its speed.”

“In racing, drivers often use nitrous oxide to provide a quick burst of power during a straightaway.”

“The chemical properties of nitrous oxide make it a popular choice for both medical anesthesia and high-performance automotive applications, though its environmental impact remains a subject of debate.”

Examples

simple

“The engine uses nitrous to increase its speed.”

contextual

“In racing, drivers often use nitrous oxide to provide a quick burst of power during a straightaway.”

complex

“The chemical properties of nitrous oxide make it a popular choice for both medical anesthesia and high-performance automotive applications, though its environmental impact remains a subject of debate.”

Real-World Examples

“Legume residues may supply nitrogen but can increase nitrous oxide emissions as they decompose.”
Phys.org · 1 Sept 2026
“This nitrous oxide could help Earth hold onto heat.”
Phys.org · 24 Aug 2026

Etymology

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

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

Domains

BiologyChemistry

This entry

Level
C1 · Advanced
Frequency
Occasional
Updated

Scan code

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English Reference