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Latin. n. Unit of liquid measure having volume of a cubic Roman foot, amphora, cube di.


 - adj. (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.


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