‖ scaˈlenum, n. Geom. Obs.
[L. (sc. triangulum), neut. of scalēnus (see next).]
A scalene triangle. Also predicatively as adj. Cf. scalenon.
| 1570 Billingsley Euclid i. def. xxvi. 4 Scalenum is a triangle, whose three sides are all vnequall. 1653 H. More Schol. Antid. Ath. Philos. Writ. (1712) 144 The rest of the scalenums which make up the Square. 1735 Berkeley Def. Free-thinking §45. 56 It [a triangle] must be neither oblique nor rectangular, neither equilateral, equicrural, nor scalenum. 1787 Gentl. Mag. LVII. ii. 1059/2 The true figure of the encampment is rather an isosceles than a scalenum. |