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homeostasis
[hoh-mee-uh-stey-sis]
noun
the tendency of a system, especially the physiological system of higher animals, to maintain internal stability, owing to the coordinated response of its parts to any situation or stimulus that would tend to disturb its normal condition or function.
Psychology.a state of psychological equilibrium obtained when tension or a drive has been reduced or eliminated.
Entomology.the ability of members of a colony of social insects to behave cooperatively to produce a desired result, as when bees coordinate the fanning of their wings to cool the hive.
homeostasis
/ ˌhəʊmɪəʊˈstætɪk, ˌhəʊmɪəʊˈsteɪsɪs /
noun
the maintenance of metabolic equilibrium within an animal by a tendency to compensate for disrupting changes
the maintenance of equilibrium within a social group, person, etc
homeostasis
The tendency of an organism or cell to regulate its internal conditions, such as the chemical composition of its body fluids, so as to maintain health and functioning, regardless of outside conditions. The organism or cell maintains homeostasis by monitoring its internal conditions and responding appropriately when these conditions deviate from their optimal state. The maintenance of a steady body temperature in warm-blooded animals is an example of homeostasis. In human beings, the homeostatic regulation of body temperature involves such mechanisms as sweating when the internal temperature becomes excessive and shivering to produce heat, as well as the generation of heat through metabolic processes when the internal temperature falls too low.
homeostasis
The tendency of the body to seek and maintain a condition of balance or equilibrium within its internal environment, even when faced with external changes. A simple example of homeostasis is the body's ability to maintain an internal temperature around 98.6 degrees Fahrenheit (see also Fahrenheit), whatever the temperature outside.
Other Word Forms
- homeostatic adjective
- homeostatically adverb
Word History and Origins
Origin of homeostasis1
Example Sentences
This system works to maintain homeostasis by balancing the body’s temperature, pain and immune response.
For example, whether amid summer heat or a winter freeze, our internal temperature remains steady at 37°C, thanks to a process called homeostasis.
"This neuro-immune-endocrine cooperation synergistically promotes increased production of renin to maintain blood pressure homeostasis, but, on the other hand, severe arteriolar hypertrophy reduces the blood filtration function of the kidney."
Rather, the researchers propose that cell-in-cell phenomena may play crucial roles in normal development, homeostasis and stress response across a wide range of organisms.
These sites are critical hubs for the exchange of essential biomolecules, such as lipids and calcium, which are vital for maintaining cellular homeostasis.
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Related Words
When To Use
Homeostasis is the tendency of an organism or body to maintain internal stability.The most well-known example of homeostasis is body temperature. The human body wants to stay at a steady temperature (on average, 98.6 degrees Fahrenheit). If you get too hot or cold, your body will react in order to return itself to its preferred temperature.If you are getting too hot, for example, your nervous system will send signals to the brain. The brain wants these signals to stop so it will react by causing the body to sweat or increasing blood circulation to the skin. It will do this until the body temperature returns to an acceptable level and the signals stop. This is referred to as a negative (as in opposite) feedback response system.Homeostasis is a trend or preference of a system, like your body’s desire to stay at a steady temperature. The body doesn’t have to be told or forced to perform homeostasis. It does it automatically. Almost always, a failure of the body to maintain homeostasis will lead to death.
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