Question

Define equilibrium ........

Answer 1

From a biological standpoint, equilibrium is usually expressed in terms of homeostasis.
Homeostasis in a living organism is the regulation of the internal environment so as to maintain a stable, constant condition. Manifold dynamic equilibrium adjustment and regulation mechanisms make homeostasis possible. The concept derives from milieu interieur created in 1865 by Claude Bernard, often considered the father of physiology.
Regulators maintain parameters at a constant level over possibly wide ambient environmental variations. On the other hand, conformers allow the environment to determine the parameter. For instance, endothermic animals (regulators) maintain a constant body temperature, while exothermic animals (conformers) exhibit wide body temperature variation.

Answer 2

a state in which opposing forces or influences are balanced.

"the maintenance of social equilibrium"

Similar:

balance

symmetry

equipoise

parity

equality

evenness

stability

steadiness

counterpoise

equipollence

Opposite:

imbalance

a state of physical balance.

"I stumbled over a rock and recovered my equilibrium"

a calm state of mind.

"his intensity could unsettle his equilibrium"

Similar:

composure

calmness

calm

equanimity

collectedness