a. Obs. Also 7 æquiponderous. [f. EQUI- + L. pondus, ponder-is weight + -OUS.] Of equal weight or specific gravity; fig. of equal authority.
1656–81. in Blount, Glossogr.
1664. Power, Exp. Philos., 96. Being … æquiponderous to a Mercurial Cylinder of 28 Inches.
1691. T. H[ale], Acc. New Invent., p. xxvi. His Character justly renders him æquiponderous to them in Moral … Knowledge.
1729. H. de Saumarez, in Phil. Trans., XXXVI. 54. To make it equiponderous with the Water.
Hence Equiponderousness.
1736. in Bailey.
