Obs. [ad. med.L. æquiponderāt-us, pa. pple. of æquiponderāre: see next.] Equal in weight; in a state of equilibrium. Const. to, with.
1646. Sir T. Browne, Pseud. Ep., II. ii. 58. In long wires equiponderate with untwisted silke and soft wax.
1674. Petty, Disc. Dupl. Proportion, 49. If 1728 Mice were equiponderate to one Horse.
fig. 1814. Scott, Wav., II. xxiii. 355. Which is equiponderate with our vernacular adage.