See COLUMN.

### abacus

This was a wooden frame with beads on it. It was used to help children with counting sums.

### Abacus

Flat portion on top of a capital.
Found on http://www.encyclo.co.uk/local/20018

### abacus

[n] - a tablet placed horizontally on top of the capital of a column as an aid in supporting the architrave 2. [n] - a calculator that performs arithmetic functions by manually sliding counters on rods or in grooves
Found on http://www.webdictionary.co.uk/definition.php?query=abacus

### Abacus

flat portion on top of a capital
Found on http://www.castlexplorer.co.uk/glossary.php

### Abacus

Counting using coloured balls on a wire frame. Early calculator. Click here to see image of an Abacus
Found on http://www.encyclo.co.uk/local/20495

### Abacus

The top part of a capital, not to be confused with an impost. Both of these terms have their roots in classical architecture. In a classical context the abacus is the upper part of a capital that the entablature rests on, while the impost is a heavy stone supporting an arch. Transferring the terms to medieval buildings has caused endless confusion ...
Found on http://www.crsbi.ac.uk/resources/glossary.html

### Abacus

the flat slab which sits on top of a capital. See Classical Architecture.
Found on http://www.encyclo.co.uk/local/20935

### Abacus

In architecture, a flat slab that sits on top of a capital and beneath the architrave. It is also called an impost block. Also see: capital, column, cornice, Corinthian, Doric, entablature, frieze, Ionic, shaft, stylobate.
Found on http://www.virtualani.org/glossary/index.htm

### Abacus

Ab'a·cus (ăb'ȧ*kŭs) noun ; English plural Abacuses ; Latin plural Abaci (-sī). [ Latin abacus , abax , Greek 'a`bax ] 1. A table or tray strewn with sand, anciently used for drawing, calculating, etc. [ Obsolete] 2.
Found on http://www.encyclo.co.uk/webster/A/1

### abacus

1. A table or tray strewn with sand, anciently used for drawing, calculating, etc. ... 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. The uppermost member o...
Found on http://www.encyclo.co.uk/local/20973

### abacus

noun a calculator that performs arithmetic functions by manually sliding counters on rods or in grooves
Found on http://wordnetweb.princeton.edu/perl/webwn?s=abacus

### Abacus

• (n.) A table or tray strewn with sand, anciently used for drawing, calculating, etc. • (n.) 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. • (n.) The...
Found on http://thinkexist.com/dictionary/meaning/abacus/

### abacus

(from the article `capital`) Two simple forms of the capital are a square wooden block called an abacus, placed on the top of a post, and an oblong block called a billet, set ... ...of the shaft but which is set off from it visually by one or more narrow grooves; the echinus, a circular block that bulges outward at its ... [2 related...
Found on http://www.britannica.com/eb/a-z/a/2

### abacus

calculating device, probably of Babylonian origin, that was long important in commerce. It is the ancestor of the modern calculating machine and ... [4 related articles]
Found on http://www.britannica.com/eb/a-z/a/2

### abacus

abacus (s); abaci (pl) 1. A manual computing device consisting of a frame holding parallel rods strung with movable counters. 2. In architecture, a slab on the top of the capital of a column.
Found on http://www.wordinfo.info/words/index/info/view_unit/2362/

### Abacus

An abacus is a counting frame with balls sliding on wires. It was first used before the adoption of the ten digit numeric system and is still widely used in China.
Found on http://www.probertencyclopaedia.com/browse/AA.HTM

### Abacus

In architecture the term abacus is refers to the flat square slab of masonry that forms the uppermost member or division of the capital of a column, immediately under the architrave. it is a very essential feature in the Grecian and Roman orders. In the Grecian Doric the abacus has simply the form of a square tile without either chamfer or moulding...
Found on http://www.probertencyclopaedia.com/browse/TA.HTM

### Abacus

[disambiguation] An abacus is a counting frame. Abacus may also refer to: ...
Found on http://en.wikipedia.org/wiki/Abacus_(disambiguation)

### Abacus

The topmost member of the capital of a column.
Found on http://www.artisansofthevalley.com/comm_gloss3.html

### abacus

Chinese abacus A counting frame that started out, several thousand years ago, as rows of pebbles in the desert sands of the Middle East. The word appears to come from the Hebrew âbâq ('dust') or the Phoenician abak ('sand') via the Greek abax, which refers to a small tray covered with sand to h...
Found on http://www.daviddarling.info/encyclopedia/A/abacus.html

### abacus

abacus (ăb'ukus, ubăk'–) , in mathematics, simple device for performing arithmetic calculations. The type of abacus now best known is represented by a frame with sliding counters. An elementary abacus might have ten parallel wires strung between two boards on a frame, with ...

### abacus

abacus (ăb'ukus) , in architecture, flat slab forming the top member of a capital. In classical orders it varies from a square form having unmolded sides in the Greek Doric, to thinner proportions and ovolo molding in the Greek Ionic, and to sides incurving and corners cut in Roman Ionic a...