1 definition found
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Abacus \Ab"a*cus\ ([a^]b"[.a]*k[u^]s), n.; E. pl {Abacuses}; L.
pl {Abaci} (-s[imac]). [L. abacus, abax, Gr 'a`bax]
1. A table or tray strewn with sand, anciently used for
drawing, calculating, etc [Obs.]
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.
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
4. A board, tray, or table, divided into perforated
compartments, for holding cups, bottles, or the like a
kind of cupboard, buffet, or sideboard.
{Abacus harmonicus} (Mus.), an ancient diagram showing the
structure and disposition of the keys of an instrument.
--Crabb.
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