Standard Lemma guide

nitro

adj · name · noun · 8 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • nī'trō
  • /ˈnaɪtɹəʊ/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -aɪtɹəʊ
  • CMU ARPABET: N IH1 T R OW0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Containing the nitro group.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: chemistry, natural-sciences, physical-sciences

Examples

  • Nitro compounds tend to be unstable and often explosive.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

name

Meaning 2

A city in West Virginia.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

The univalent NO2 functional group.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

Nitroglycerin, especially as medication.

Definition source: English Wiktionary via Wiktextract

Usage: informal, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A beer that is nitrogenated to give it a more creamy head.

Definition source: English Wiktionary via Wiktextract

Usage: countable, informal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

Nitromethane.

Definition source: English Wiktionary via Wiktextract

Usage: informal, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

Nitrogen, especially as liquid nitrogen.

Definition source: English Wiktionary via Wiktextract

Usage: informal, uncountable

Examples

  • 8 April 2018 Chomp Squad, "You Can Handel It" Blaze, set the blasters to liquid nitro! We're gonna freeze this lava before it flows any further.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

Nitrous oxide; the system that adds nitrous oxide to a car engine; by extension, a boost mechanic to speed up cars in a video game.

Definition source: English Wiktionary via Wiktextract

Usage: informal, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Derived from nitrocellulose, referring to local gunpowder manufacture.

Across languages

Translations

5 source translations are retained for this English entry.

  • Dutch: nitro — NO2
  • Finnish: nitriitti — NO2
  • Dutch: nitroglycerine — nitroglycerin as medication
  • Finnish: nitro — nitroglycerin as medication
  • Polish: nitrogliceryna — nitroglycerin as medication