trisection
(traɪˈsɛkʃən)
[n. of action f. trisect v., after L. sectiōnem section: see -tion, and cf. F. trisection (1690 in Hatz.-Darm.).]
The action of trisecting; division into three equal parts; rarely gen. division into three.
| 1664 Power Exp. Philos. iii. 187 The Trisection of an Angle. 1786 Phil. Trans. LXXVI. 16 The division of the arc of 90..required trisections and quinquesections. 1842 De Quincey Pagan Oracles Wks. 1858 VIII. 193 Into this trisection I shall decompose the coarse unity of the question presented by Van Dale. 1885 C. Leudesdorf Cremona's Proj. Geom. 295 The point Q is one of the points of trisection of the arc. |