homeostasis

Homeostasis is the ability or tendency to maintain internal stability in an organism to compensate for environmental changes. (noun)

An example of homeostasis is the human body keeping an average temperature of 98.6 degrees.

See homeostasis in Webster's New World College Dictionary

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noun

Physiol. the tendency to maintain, or the maintenance of, normal, internal stability in an organism by coordinated responses of the organ systems that automatically compensate for environmental changes
any analogous maintenance of stability or equilibrium, as within a social group

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