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English definition of “equilibrium”

equilibrium

noun [U]  /ˌi·kwəˈlɪb·ri·əm, ˌek·wə-/ us  
a state of balance: He devised a mathematical method to prove the existence of equilibrium among prices, production, and consumer demand. biology Equilibrium is also the state of balance maintained by the various organisms that live in a particular environment. physics Equilibrium also means a state of balance between opposing forces. Equilibrium is also a state of mental calm.
(Definition of equilibrium from the Cambridge Academic Content Dictionary © Cambridge University Press)
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