| 单词 | abacus |
| 释义 | abacus /ab"euh keuhs, euh bak"euhs/, n. , pl. abacuses, abaci /ab"euh suy', -kuy', euh bak"uy/. 1. a device for making arithmetic calculations, consisting of a frame set with rods on which balls or beads are moved. 2. Archit. a slab forming the top of the capital of a column. See diag. under column. [1350-1400; ME < L: board, counting board, re-formed < Gk ábax] |
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