the world > matter > properties of materials > weight or relative heaviness > [noun] > ponderable matter > that which is heavy or a heavy mass > used on account of its weight > equal or counterbalancing (5)
A weight which balances another weight, or acts against a force, so as to establish equilibrium; an equal or counterbalancing weight.
A weight used to balance another weight; spec. that used to balance the weight of a rotating or ascending and descending part, so as to make it…
a counterbalancing weight.
A weight in the opposite scale, a counterbalancing weight, a counterpoise.