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rectangular > define

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"
by WordNet 3.0 © 2006 by Princeton University
(a.) Right-angled; having one or more angles of ninety degrees.
by Webster's Revised Unabridged Dictionary