Counterpoise

Webster's Dictionary of the English Language

·vt To act against with equal power; to Balance.

II. Counterpoise ·noun An equal power or force acting in opposition; a force sufficient to balance another force.

III. Counterpoise ·noun The relation of two weights or forces which balance each other; equilibrium; equiponderance.

IV. Counterpoise ·noun A weight sufficient to balance another, as in the opposite scale of a balance; an equal weight.

V. Counterpoise ·vt To act against with equal weight; to equal in weight; to balance the weight of; to Counterbalance.