from The American Heritage® Dictionary of the English Language, 4th Edition
- Equal; equally: equiangular.
from Wiktionary, Creative Commons Attribution/Share-Alike License
from the GNU version of the Collaborative International Dictionary of English
- A prefix, meaning equally
from The Century Dictionary and Cyclopedia
- n. An element of words of Latin origin, meaning ‘equal’ (‘having equal …’), as in equidistant, equivalent, etc.
Middle English, from Latin aequi-, from aequus, equal.(American Heritage® Dictionary of the English Language, Fourth Edition)