| 释义 |
scalene, a. and n.|ˈskeɪliːn, formerly skəˈliːn|
[ad. late L. scalēnus: see scalenus. Cf. F. scalène.]
A. adj.
1. Geom.
a. Of a triangle: Having three unequal sides.
1734Builder's Dict. s.v., A scalene Triangle, scalenum Triangle. 1775Harris Philos. Arrangem. xv. 377 The Genus, Triangle, being divided into equilateral, equicrural, and scalene. 1801Bournon in Phil. Trans. XCI. 183 The crystal is often seen placed upon one of its scalene triangular sides. 1833Dickens Sk. Boz, Tales ii, With one round and two scalene triangular beds, containing..an unlimited number of marigolds. 1854H. Miller Sch. & Schm. v. 87 The sail itself..formed a scalene triangle.
b. scalene cone, scalene cylinder: one of which the axis is not perpendicular to the base.
1684Wallis Angular Sections i. 73 The Scalene Cone and Cylinder. 1807T. Young Nat. Phil. II. 21 The sub⁓contrary section of a scalene cone is a circle.
c. scalene cell: see quot.
1875Cayley in Q. Jrnl. Pure & Appl. Math. XIII. 321 The scalene cell is..a system of 3 pairs of equal rods PA, QA; PB, QB; PC, QC jointed together at and capable of rotating about the points P, Q, A, B, C; the three lengths PA, PB, PC..being all of them unequal.
2. Anat. scalene muscle = scalenus.
scalene tubercle, an elevation on the upper edge of the first rib, from which the scalenus anticus muscle originates.
1827Abernethy Surg. Wks. I. 133 The outer margin of the scalene muscles. 1934[see scalenotomy]. 1962Gray's Anat. (ed. 33) 600 The scalene muscles, in particular the Scalenus medius, are important accessory muscles of inspiration.
B. n.
1. A scalene triangle. rare.
1642H. More Song of Soul ii. i. ii. lvii, But if 't consist of points: then a Scalene I'll prove all one with an Isosceles.
2. Anat. = scalenus.
1891in Century Dict. 1978[see scalenotomy]. |