燃焼(ねんしょう)

ねんしょう
noun
combustion; burning
1. combustion; burning
The chemical process of a substance reacting with oxygen to produce heat and light. Used both in scientific and everyday contexts.
燃焼(ねんしょう)には酸素(さんそ)が必要(ひつよう)だ。
Combustion requires oxygen.
ガスが完全(かんぜん)燃焼(ねんしょう)していない。
The gas is not burning completely.
不完全(ふかんぜん)燃焼(ねんしょう)は一酸化炭素(いっさんかたんそ)中毒(ちゅうどく)の原因(げんいん)になる。
Incomplete combustion can cause carbon monoxide poisoning.
2. burning (of energy, calories); intense effort
Figuratively, the expenditure of energy, especially in exercise contexts referring to burning calories, or giving maximum effort.
脂肪(しぼう)を燃焼(ねんしょう)させる。
To burn fat.
有酸素(ゆうさんそ)運動(うんどう)はカロリー燃焼(ねんしょう)に効果的(こうかてき)だ。
Aerobic exercise is effective for burning calories.
試合(しあい)で完全(かんぜん)燃焼(ねんしょう)できて悔(く)いはない。
I gave it my all in the match and have no regrets.

USAGE:
燃焼(ねんしょう) is used both literally for the chemical process of burning and figuratively for expending energy. The figurative sense is especially common in fitness and sports contexts.

COMMON COLLOCATIONS:

  • 完全(かんぜん)燃焼(ねんしょう) (complete combustion; giving one's all)
  • 不完全(ふかんぜん)燃焼(ねんしょう) (incomplete combustion)
  • 脂肪(しぼう)燃焼(ねんしょう) (fat burning)
  • 燃焼(ねんしょう)させる (to burn, to combust [causative])

SIMILAR WORDS:
燃(も)える is the everyday verb "to burn." 燃焼(ねんしょう) is more technical and often used as a する-verb or in compound nouns.

general
Added 2026.3.5 15:20
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