coun·ter·bal·ance 
(kountər-băl′əns, koun′tər-băləns)
(kountər-băl′əns, koun′tər-băləns)n.
1. A force or influence equally counteracting another.
2. A weight that acts to balance another; a counterpoise or counterweight.
tr.v. (koun′tər-băləns, kountər-băl′əns) coun·ter·bal·anced, coun·ter·bal·anc·ing, coun·ter·bal·anc·es
1. To act as a counteracting force, influence, or weight to; counterpoise.
2. To oppose with an equal force; offset.