Quadrantal /(?)/

Quad·ran·tal

Quadrantal

a.
  1. Of or pertaining to a quadrant; also, included in the fourth part of a circle; as, quadrantal space. (Geom.)

Phrases & Compounds
Quadrantal triangle
a spherical triangle having one side equal to a quadrant or arc of 90°.
Quadrantal versor
a versor that expresses rotation through one right angle.

Quadrantal

n.
  1. A cubical vessel containing a Roman cubic foot, each side being a Roman square foot; -- used as a measure. (Rom. Antiq.)
  2. A cube. [R.]