a. Obs. rare1. [f. L. æquipondi-um equality of weight (f. æquus equal + pond-us weight) + -OUS.] Having equal weight on both sides; nicely balanced.
1661. Glanvill, Vanity Dogm., 228. The Scepticks affected an indifferent equipondious neutrality.
1775. in Ash.
1846. in Worcester; and in mod. Dicts.