homeostasis
homeostasis — 名詞
1. The natural process by which a living organism or biological system keeps its in
恆定
生物體維持內部環境穩定的機制
The natural process by which a living organism or biological system keeps its internal conditions — such as body temperature, blood sugar, or pH levels — stable and within a healthy range, no matter how the outside environment changes.
Beatrix's body relies on homeostasis to keep her blood sugar steady after a large meal.
Beatrix 的身體靠著恆定機制來保持血糖穩定，即使吃了一頓大餐之後也是如此。
collocation: relies on homeostasis to keep [condition] steady
During a fever, homeostasis is the mechanism that returns the body's internal temperature to normal.
發燒期間，恆定機制會讓體內溫度回復到正常水準。
homeostasis is the mechanism that returns [condition] to normal
In biology class, Rachid learned how desert plants use homeostasis to keep water inside their leaves.
Rachid 在生物課上學到，沙漠植物如何利用恆定機制將水分留在葉片裡。
When Stefan's blood pressure rose during the exam, homeostasis gradually brought it back down.
Stefan 考試時血壓突然升高，但恆定機制讓他逐漸恢復正常。
The kidneys help maintain homeostasis by controlling how much water and salt the body holds onto.
腎臟透過控制身體保留多少水分與鹽分來協助維持體內恆定。
- equilibrium
broader term used in physics, chemistry, and economics; lacks the active biological self-regulation that homeostasis implies
- balance
everyday word that captures the same core idea but is far less precise in scientific contexts
- steady state
technical term from systems theory describing a system whose variables stay constant over time
- disequilibrium
a state where the normal balance of a biological system is disturbed
- imbalance
general term for a lack of healthy internal conditions
文法句型
maintain / regulate / restore homeostasis
homeostasis + verb (keeps, restores, maintains)
用法筆記
Common in biology and medical writing. The word is uncountable — avoid 'a homeostasis' or 'homeostases' in standard academic English.