单词 | trapezium |
释义 | trapezium —trapezial, adj. /treuh pee"zee euhm/, n. , pl. trapeziums, trapezia /-zee euh/. 1. Geom. a. (in Euclidean geometry) any rectilinear quadrilateral plane figure not a parallelogram. b. a quadrilateral plane figure of which no two sides are parallel. c. Brit. trapezoid (def. 1a). 2. Anat. a bone in the wrist that articulates with the metacarpal bone of the thumb. [1545-55; < NL < Gk trapézion kind of quadrilateral, lit., small table, equiv. to trápez(a) table (shortening of *tetrapeza object having four feet, equiv. to tetra- four + péza foot, akin to poús, podós; see TETRA-, FOOT) + -ion dim. suffix] |
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