Abacus

·noun A tablet, panel, or compartment in ornamented or mosaic work.

II. Abacus ·noun A table or tray strewn with sand, anciently used for drawing, calculating, ·etc.

III. Abacus ·noun The uppermost member or division of the capital of a column, immediately under the architrave. ·see Column.

IV. Abacus ·noun A board, tray, or table, divided into perforated compartments, for holding cups, bottles, or the like; a kind of cupboard, buffet, or sideboard.

V. Abacus ·noun A calculating table or frame; an instrument for performing arithmetical calculations by balls sliding on wires, or counters in grooves, the lowest line representing units, the second line, tens, ·etc. It is still employed in China.