**Quad*ran"tal** (?), a. [L. *quadrantalis* containing the fourth fourth part of a measure.] Geom.

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 90°. -- Quadrantal versor, a versor that expresses rotation through one right angle.

© Webster 1913.

**Quad*ran"tal**, n. [L.]

**1.** Rom. Antiq.

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

**2.**

A cube.

[R.]

© Webster 1913.