from The Century Dictionary.

  • In geometry, pertaining to a tetragon; having four angles or sides.
  • In botany and zoology, four-angled; having four longitudinal angles.
  • Square; quartile.

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

  • adjective (Geom.) Of or pertaining to a tetragon; having four angles or sides; thus, the square, the parallelogram, the rhombus, and the trapezium are tetragonal fingers.
  • adjective (Bot.) Having four prominent longitudinal angles.
  • adjective (Crystallog.) Designating, or belonging to, a certain system of crystallization; dimetric. See Tetragonal system, under Crystallization.

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

  • adjective Having four sides (as a tetragon); quadrilateral.
  • adjective crystallography Having two equal axes and one unequal, and all angles 90°.

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

  • adjective of or relating to or shaped like a quadrilateral


Sorry, no etymologies found.



Log in or sign up to get involved in the conversation. It's quick and easy.