1. to exceed something else in weight; be the heavier.
2. to incline downward or descend, as one scale or end of a balance, because of greater weight; be weighed down.
3. to be superior in power, force, influence, number, amount, etc.; predominate: Evidence for the accused preponderated at the trial.
The senator's opinion on global warming preponderated the mere lobbyist's, as he was better known and elected to office.