Pronunciation: (pri-pon'du-rāt"),[key] —v.i.,-at•ed, -at•ing. 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.