'Equilateral' definitions:

Definition of 'equilateral'

From: WordNet
adjective
Having all sides or faces equal
noun
A figure whose sides are all equal

Definition of 'Equilateral'

From: GCIDE
  • Equilateral \E`qui*lat"er*al\, a. [L. aequilateralis; aequus equal + latus, lateris, side: cf. F. ['e]quilat['e]ral.] Having all the sides equal; as, an equilateral triangle; an equilateral polygon. [1913 Webster]
  • Equilateral hyperbola (Geom.), one whose axes are equal.
  • Equilateral shell (Zo["o]l.), one in which a transverse line drawn through the apex of the umbo bisects the valve, or divides it into two equal and symmetrical parts.
  • Mutually equilateral, applied to two figures, when every side of the one has its equal among the sides of the other. [1913 Webster]

Definition of 'Equilateral'

From: GCIDE
  • Equilateral \E`qui*lat"er*al\, n. A side exactly corresponding, or equal, to others; also, a figure of equal sides. [1913 Webster]

Synonyms of 'equilateral'

From: Moby Thesaurus