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equilateral Definition

equi·lat·eral (ē′kwi lat′ər əl)

adjective

having all sides equal an equilateral triangle

Etymology: LL aequilateralis < L aequus (see equal) + latus, side: see lateral

noun

  1. a figure having equal sides
  2. a side exactly equal to another or others

equilateral Usage Examples

Modifies a noun

  • triangle: Such a pattern could be equally well achieved by cells based on the equilateral triangle or square.
  • face: The square and silver triangle faces are flat while the equilateral faces are dimpled.

Modifying Another Word

  • almost: Omega Centauri makes an almost equilateral triangle with these two stars on their western side.