equilateral Meaning, Definition & Usage

  1. noun a figure whose sides are all equal
  2. adjective satellite having all sides or faces equal

WordNet

E`qui*lat"er*al adjective
Etymology
L. aequilateralis; aequus equal + latus, lateris, side: cf. F. équilatéral.
Definitions
  1. Having all the sides equal; as, an equilateral triangle; an equilateral polygon.
E`qui*lat"er*al noun
Definitions
  1. A side exactly corresponding, or equal, to others; also, a figure of equal sides.

Webster 1913