Emily Dickinson Lexicon

E-QUI-POL'LENCE, or E-QUI-POL'LEN-CY, n. [L. æquus and pollentia, power, polleo, to be able.]

1. Equality of power or force.
2. In logic, an equivalence between two or more propositions; that is, when two propositions signify the same thing, though differently expressed. Encyc.