from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Of, relating to, or shaped like a triangle.
  • adjective Having a triangle for a base.
  • adjective Relating to or involving three entities, such as three people, objects, or ideas.

from The Century Dictionary.

  • Of or pertaining to a triangle; consisting of a triangle.
  • Three-cornered and three-sided; included within three sides and angles: as, a triangular plot of ground; a triangular building.
  • Hence, of or pertaining to three independent things; three-sided as regards elements, interests, or parties: as, a triangular treaty.
  • In heraldry, represented as solid and three-sided: thus, a triangular pyramid or a triangular pyramid reversed is a point or a pile which is divided by a line indicating a projecting edge, and is treated as if a solid seen in perspective.
  • A dense fibrous membrane stretched across the subpubic arch on the deep surface of the crura of the penis and the bulb of the urethra. Also called deep perineal or subpubic fascia.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Having three angles; having the form of a triangle.
  • adjective (Bot.) Oblong or elongated, and having three lateral angles.
  • adjective compasses with three legs for taking off the angular points of a triangle, or any three points at the same time.
  • adjective (Zoöl.) any maioid crab; -- so called because the carapace is usually triangular.
  • adjective (Math.) the series of numbers formed by the successive sums of the terms of an arithmetical progression, of which the first term and the common difference are 1. See Figurate numbers, under Figurate.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Shaped like a triangle.
  • adjective Of, or pertaining to, triangles.
  • adjective Having a triangle as a base; as, a triangular prism, a triangular pyramid.
  • adjective Having three elements or parties; trilateral, tripartite.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective having three angles; forming or shaped like a triangle
  • adjective having three sides


Sorry, no etymologies found.



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