Quadrantal

Part of speech: noun (n.)

1. A cubical vessel containing a Roman cubic foot, each side being a Roman square foot; -- used as a measure.

2. A cube. [R.]

Part of speech: adjective (a.)

Of or pertaining to a quadrant; also, included in the fourth part of a circle; as, quadrantal space. Quadrantal triangle, a spherical triangle having one side equal to a quadrant or arc of 90º. -- Quadrantal versor, a versor that expresses rotation through one right angle.