恒常性(こうじょうせい)

こうじょうせい
noun
constancy; homeostasis
formalscienceabstract
1. constancy, stability, unchanging nature
The quality of remaining constant and unchanging over time.
品質(ひんしつ)の恒常性(こうじょうせい)を保(たも)つ。
To maintain constancy in quality.
市場(しじょう)の恒常性(こうじょうせい)は経済(けいざい)の安定(あんてい)にとって重要(じゅうよう)だ。
Market constancy is important for economic stability.
供給(きょうきゅう)の恒常性(こうじょうせい)が失(うしな)われると、消費者(しょうひしゃ)の信頼(しんらい)も低下(ていか)する。
When supply constancy is lost, consumer trust also declines.
2. homeostasis
In biology, the ability of an organism to maintain stable internal conditions (such as body temperature, blood sugar, etc.) despite changes in the external environment.
体温(たいおん)の恒常性(こうじょうせい)は生命(せいめい)維持(いじ)に不可欠(ふかけつ)だ。
Homeostasis of body temperature is essential for sustaining life.
人体(じんたい)は恒常性(こうじょうせい)を維持(いじ)するために、さまざまな調節(ちょうせつ)機能(きのう)が働(はたら)いている。
Various regulatory functions work to maintain homeostasis in the human body.
血糖値(けっとうち)の恒常性(こうじょうせい)が崩(くず)れると、糖尿病(とうにょうびょう)などの病気(びょうき)を引(ひ)き起(お)こすことがある。
When homeostasis of blood sugar levels is disrupted, it can lead to diseases such as diabetes.

A compound of 恒常(こうじょう) (permanent, constant) and 性(せい) (nature, quality). In biology, this is the standard Japanese translation of "homeostasis" — the concept that living organisms actively regulate their internal environment.

Common collocations

Similar words

  • ホメオスタシス: homeostasis — the direct loanword from English, used in scientific contexts
  • 安定性(あんていせい): stability — more general term for being stable
  • 一定(いってい): constant, fixed — describes something staying at a set level

Related Words

Compare: 安定性(あんていせい) (stability)
Compare: 一定(いってい) (constant, fixed)
general
Added 2026.4.2 12:27 · Revised 2026.9.2 13:02
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