单词 | trapezium |
释义 | tra·pe·zi·um (trə-peze-əm) n.pl. tra·pe·zi·ums or tra·pe·zi·a(-ze-ə) 1. Mathematics a. A quadrilateral having no parallel sides. b. Chiefly British A trapezoid. 2. Anatomy A bone in the wrist at the base of the thumb. [Originally, a quadrilateral with two parallel sides (later confused withTRAPEZOID, originally, a quadrilateral having no parallel sides), fromModern Latintrapezium, a quadrilateral with two parallel sides, fromLate Greektrapezion, fromGreek, diminutive oftrapeza, table : tra-, four; see kwetwer- in the Appendix of Indo-European roots + peza, foot; see ped- in the Appendix of Indo-European roots.] trapezium |
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