a. [f. TRAPEZIUM + -(I)FORM. Cf. F. trapéziforme (Littré).] Having the form of a trapezium; quadrilateral with only two sides parallel.
1776. J. Lee, Introd. Bot., Explan. Terms, Trapeziforme, trapeziform.
1817. Kirby & Sp., Entomol. (1843), II. 145. The wax-pockets in the hive-bee … two trapeziform whitish pockets.
1834. H. M’Murtrie, Cuvier’s Anim. Kingd., 375. In Mycterus,… the body is ovoid,… and the thorax trapeziform.
1868. Rep. U.S. Commissioner Agric. (1869), 100. The family Tenebrionidæ consists of insects … having the thorax square or trapeziform, and as broad behind as the base of the wing-cases (Westwood).
1890. Cent. Dict., s.v., Projection, Trapeziform map-projection, a map-projection in which the space between two meridians and two parallels is represented by a trapezoid [i.e., a trapezium].
