a state of equilibrium or equipoise; equal distribution of weight, amount, etc.
something used to produce equilibrium; counterpoise.
mental steadiness or emotional stability; habit of calm behavior, judgment, etc.
a state of bodily equilibrium: He lost his balance and fell down the stairs.
an instrument for determining weight, typically by the equilibrium of a bar with a fulcrum at the center, from each end of which is suspended a scale or pan, one holding an object of known weight, and the other holding the object to be weighed.