# Nitro

/ˈnɪtɹoʊ/ (US) · /nˈaɪtɹəʊ/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/nitro
Updated: 2026-08-15

## Definition

a short name for nitroglycerin or nitrogen. You use it when talking about things that make engines go faster or explosives more powerful.

For teachers: a colloquial clipping of nitroglycerin or nitrogen, typically referring to chemical compounds used in explosives or as fuel additives to increase engine power.

## Examples

- The racer used a nitro boost to win the competition.
- The mechanic warned that adding nitro to a standard engine without proper cooling could cause permanent damage.
- In high-performance drag racing, nitro-methane is the preferred fuel because it provides significantly more energy per stroke than conventional gasoline.

## Usage notes

- Often used as a prefix in chemical nomenclature or as a standalone noun in informal automotive and industrial contexts.

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