counterpoise
Concise Oxford English Dictionary © 2008 Oxford University Press:
counterpoise/ˈkaʊntəpɔɪz/
▶noun a factor or force that balances or neutralizes another.
■ archaic a state of equilibrium.
■ a counterbalancing weight.
▶verb have an opposing and balancing effect on.■ bring into contrast.
'counterpoise' also found in these Oxford entries:

