equi-

a combining form meaning “equal,” used in the formation of compound words:

equimolecular.

Origin

Middle English < Latin aequi-, combining form representing aequus equal

British Dictionary definitions for equi-

combining form

equal or equally: equidistant, equilateral

Word Origin and History for equi-

word-forming element meaning "equal," from Latin aequi-, comb. form of aequus "equal, even" (see equal (adj.)).

equi- in Science

equi-
A prefix that means "equal" or "equally," as in equidistant.