Standard Lemma guide

deflagration

noun · 2 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.

  • UK, US: /ˌdɛfləˈɡɹeɪʃən/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

The act of deflagrating; an intense fire; a conflagration or explosion. Specifically, combustion that spreads subsonically via thermal conduction.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

combustion that propagates through a gas or along the surface of an explosive at a rapid rate driven by the transfer of heat

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: combustion, burning

History

Etymology

From Latin dēflagrātiō, from dēflagrāre.

Across languages

Translations

10 source translations are retained for this English entry.

  • Finnish: humahdus — intense fire
  • Finnish: deflagraatio — intense fire
  • Galician: deflagración — intense fire
  • German: Verpuffung — intense fire
  • Italian: deflagrazione — intense fire
  • Korean: 폭연 (pogyeon) — intense fire
  • Polish: deflagracja — intense fire
  • Portuguese: deflagração — intense fire
  • Romanian: deflagrație — intense fire
  • Spanish: deflagración — intense fire