e·qui·pol·lent 
(ē′kwə-pŏlənt, ĕk′wə-)
(ē′kwə-pŏlənt, ĕk′wə-)adj.
1. Equal in force, power, effectiveness, or significance.
2. Logic Validly deducible from each other.
3. Equivalent.
n.
An equivalent.
[Middle English, from Old French, from Latin aequipollēns, aequipollent- : aequi-, equi- + pollēns, present participle of pollēre, to be powerful.]
e′qui·pollence n.
e′qui·pollent·ly adv.