trilinearadj.
/trʌɪˈlɪniːə/ Geometry.
Of, contained by, or having some relation to, three lines (including curved as well as straight lines). trilinear co-ordinates, a system of co-ordinates determining a point in a plane by its distances, measured in three fixed directions, from three fixed straight lines forming a triangle.
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the world > relative properties > number > geometry > shape or figure > [adjective] > two-dimensional > triangular
triangle1474
triangled1486
triangular?1541
trigonal1570
trilater1570
triangulated1610
triangulate1611
triform1621
triangulary1622
triquetrous1658
trilateral1660
trilineal1715
trilinear1715
trigonic1788
trigonate1815
triagonal1831
1715 tr. D. Gregory Elements Astron. I. iii. §1. 379 The trilinear ALS is to the whole Ellipse, as the trilinear AGS to the whole Circle.
1807 C. Hutton Course Math. (ed. 5) II. 115 The Sector or Trilinear Space contained by an Arc of the Curve and two Radii.
1896 Yale Univ. Grad. Course Instr. 70 A course in analytical geometry... It includes the use of determinants and trilinear coördinates.
This entry has not yet been fully updated (first published 1914; most recently modified version published online June 2018).
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adj.1715