[ad. L. tetrans, tetrant-em (Vitruv.), ad. Gr. τετρᾶς.] = QUADRANT sb.1 4 (b).
1860. Weale, Dict. Terms (ed. 2), Tetrants, the four equal parts into which the area of a circle is divided by two diameters drawn at right angles to each other.
[ad. L. tetrans, tetrant-em (Vitruv.), ad. Gr. τετρᾶς.] = QUADRANT sb.1 4 (b).
1860. Weale, Dict. Terms (ed. 2), Tetrants, the four equal parts into which the area of a circle is divided by two diameters drawn at right angles to each other.
