| 词汇 | trapezium |
| 词根词缀 | 词源： 1570, from L.L. trapezium, from Gk. trapezion "irregular quadrilateral," lit. "a little table," dim. of trapeza "table," from tra- "four" (see four) + peza "foot, edge," related to pous (see foot). Before 1546, L. editions of Euclid used the Arabic word helmariphe. As the name of a bone in the wrist, it is recorded from 1840. |
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