from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Equal in force, power, effectiveness, or significance.
- adj. Logic Validly derived from each other; deducible.
- adj. Equivalent.
- n. An equivalent.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. having equal power or force
- adj. able to be deduced from the other
- adj. equivalent
from the GNU version of the Collaborative International Dictionary of English
- adj. Having equal power or force; equivalent.
- adj. Having equivalent signification and reach; expressing the same thing, but differently.
from The Century Dictionary and Cyclopedia
- Having equal power or force; equivalent.
- In logic, having the same meaning: applied to two propositions.
- In mathematics, equal and parallel.
Middle English, from Old French, from Latin aequipollēns, aequipollent- : aequi-, equi- + pollēns, present participle of pollēre, to be powerful.(American Heritage® Dictionary of the English Language, Fourth Edition)