沸点(ふってん)

ふってん
noun
boiling point
nature
1. boiling point
The temperature at which a liquid starts to boil; for water at normal pressure, 100 degrees Celsius.
水(みず)の沸点(ふってん)は100度(ど)だ。
The boiling point of water is 100 degrees.
気圧(きあつ)が低(ひく)いと沸点(ふってん)も下(さ)がる。
When atmospheric pressure is low, the boiling point drops too.
アルコールは水(みず)より沸点(ふってん)が低(ひく)いので先(さき)に蒸発(じょうはつ)する。
Alcohol has a lower boiling point than water, so it evaporates first.
2. boiling point (figurative); breaking point; peak of anger or excitement
The point at which someone's anger or excitement can no longer be held in.
彼(かれ)の怒(いか)りは沸点(ふってん)に達(たっ)した。
His anger reached the boiling point.
SNSでの批判(ひはん)が沸点(ふってん)に達(たっ)し、大(おお)きな炎上(えんじょう)になった。
The online criticism reached a boiling point and turned into a major backlash.
沸点(ふってん)が低(ひく)い人(ひと)はすぐに怒(おこ)る。
People with a low boiling point get angry quickly.

Literally the temperature at which a liquid begins to boil. Very commonly used figuratively to describe the point at which emotions — especially anger — reach a peak. The figurative expression 沸点(ふってん)が低(ひく)い means someone is quick to anger.

Common collocations

Related words

Related Words

Related: 融点(ゆうてん) (melting point)
Related: 凝固点(ぎょうこてん) (freezing point)
Related: 沸騰(ふっとう) (boiling)
Compare: 融解点(ゆうかいてん) (melting point)
general
Added 2026.4.24 23:21 · Revised 2026.10.3 3:19
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