[1] : The Collaborative International Dictionary of English v.0.48

abacus \ab"acus\ a^b".aku^s, n.; e. pl. abacuses; l.
   pl. abaci -simac. l. abacus, abax, gr. 'a`bax
   1. a table or tray strewn with sand, anciently used for
      drawing, calculating, etc. obs.
      1913 webster

   2. 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.
      1913 webster

   3. arch.
      a the uppermost member or division of the capital of a
          column, immediately under the architrave. see
          column.
      b a tablet, panel, or compartment in ornamented or
          mosaic work.
          1913 webster

   4. a board, tray, or table, divided into perforated
      compartments, for holding cups, bottles, or the like; a
      kind of cupboard, buffet, or sideboard.
      1913 webster

   abacus harmonicus mus., an ancient diagram showing the
      structure and disposition of the keys of an instrument.
      --crabb.
      1913 webster
see also:
abacuses abaci column abacus harmonicus 

Abacuses >> A Words
Abacuses, definition of term: Abacuses
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