adjective
- Of or relating to or shaped like a quadrilateral. .
Tetragonal and Rectangular
WordNet 3.0 © 2006 by Princeton University
- (a.) Of or pertaining to a tetragon; having four angles or sides; thus, the square, the parallelogram, the rhombus, and the trapezium are tetragonal fingers.
- (a.) Designating or belonging to, a certain system of crystallization; dimetric. See Tetragonal system, under Crystallization.
- (a.) Having four prominent longitudinal angles.
Webster's Revised Unabridged Dictionary
adjective
- Having four right angles.
- usage: "a rectangular figure twice as long as it is wide"
- Having a set of mutually perpendicular axes; meeting at right angles.
- usage: "wind and sea may displace the ship's center of gravity along three orthogonal axes"; "a rectangular Cartesian coordinate system"
- synonyms: orthogonal
WordNet 3.0 © 2006 by Princeton University
(a.) Right-angled; having one or more angles of ninety degrees.
Webster's Revised Unabridged Dictionary