homeostasis

HOH-mee-oh-STAY-sis /ˌhoʊmioʊˈsteɪsɪs/
nounC1SATGREMCAT
scientificbiological

The tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.

It is a dynamic balance, not a static one; the body is constantly adjusting to stay the same.

The story behind the word. Coined by physiologist Walter Cannon in 1926. He combined 'homoios' (similar) and 'stasis' (standing still) to describe the body's 'wisdom' in keeping its internal environment steady.

Word relationships

  • equilibrium: Equilibrium is a general state of balance; homeostasis is the active biological process of keeping that balance.
  • instability: A state of being prone to change or failure.

Word family

  • homeostatic (adjective): Relating to homeostasis.

Collocations

  • maintain homeostasis
  • internal homeostasis
  • disrupt homeostasis

Example sentences

  • "Sweating is one way the body maintains homeostasis when external temperatures rise." Biology
  • "The kidneys play a vital role in maintaining the homeostasis of blood pressure and electrolyte balance." Physiology

Memory hook

Homeostasis: Keeping things the 'same' at 'home' (the body). The body's thermostat.

When not to use

Do not use to mean 'boredom' or 'stagnation'; it is a highly active process of regulation.

Fun facts

  • Your body temperature, blood sugar, and pH levels are all kept within tiny ranges by homeostasis, or you would quickly die.

Related words

metabolism, glucose, enzyme

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