noun, plural ab·a·cus·es, ab·a·ci [ab-uh-sahy, -kahy, uh-bak-ahy]. /ˈæb əˌsaɪ, -ˌkaɪ, əˈbæk aɪ/.
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Origin of abacus
Example sentences from the Web for abacus
There is, however, evident sacrifice of sound principle in this system, the smaller abaci being of no use.The Stones of Venice, Volume I (of 3)|John Ruskin
The capitals are boldly cut, with heavy square abaci, from which bosses and floral work protrude.
They rest on the abaci of the pilasters which form a sort of drip-course right along the faade.
The abaci are all square in plan, and both bases and caps are set at right angles to the direction of the arches they support.
There are string-courses under each window, and the abaci are also carried round the steeple as string-courses of inferior scale.