発散(はっさん)

はっさん
noun, suru verb
emission, release; letting off (stress)
1. emission, dispersion, radiation
The physical release or spreading of heat, light, gas, or other substances into the surrounding area.
熱(ねつ)を発散(はっさん)する
to emit heat
この素材(そざい)は水分(すいぶん)を発散(はっさん)しやすい。
This material easily releases moisture.
太陽(たいよう)は膨大(ぼうだい)なエネルギーを発散(はっさん)している。
The sun emits an enormous amount of energy.
2. release, venting (of stress or emotions)
Releasing pent-up feelings, stress, or energy through some activity. Often used with ストレス (stress).
ストレス発散(はっさん)
stress relief
カラオケでストレスを発散(はっさん)した。
I released stress through karaoke.
運動(うんどう)は溜(た)まったエネルギーを発散(はっさん)するのに効果的(こうかてき)だ。
Exercise is effective for releasing pent-up energy.

USAGE: Sense 2 (stress release) is very common in everyday speech, especially the phrase ストレス発散(はっさん). Sense 1 is more technical/scientific.

MATHEMATICS: In math, 発散(はっさん) also means 'divergence' (opposite of 収束(しゅうそく) 'convergence').

COMMON COLLOCATIONS:

  • ストレス発散(はっさん) (stress relief)
  • 熱(ねつ)/光(ひかり)/エネルギー(えねるぎー)を発散(はっさん)する (to emit heat/light/energy)
  • 発散(はっさん)方法(ほうほう) (way to let off steam)

RELATED WORDS:

  • 放出(ほうしゅつ) (emission, discharge - more technical)
  • 解消(かいしょう) (elimination, relief - for stress)
  • 吐(は)き出(だ)す (to let out, vent)
general
Added 2026.1.31 19:50
09000/09132_hassan