noun (plural abacuses)
- 1A simple device for calculating, consisting of a frame with rows of wires or grooves along which beads are slid.More example sentences
- An abacus with 5 beads per wire will do quite nicely.
- Our eventual aim is to display the complete history of computing, from the abacus to the latest machines.
- A young man sat against the wall doing calculation with an abacus and recording data onto paper.
- 2 Architecture The flat slab on top of a capital, supporting the architrave.More example sentences
- The abacus is between the architrave and the aechinus in the capital.
- The capital displays on three of its faces a single naked male dancer, whose head is positioned on the central axis, midway between volutes, as if to form a console supporting the abacus.
- The waterleaf is a broad, unribbed, tapering leaf curving up towards the angle of the abacus and turned in at the top.
late Middle English (denoting a board strewn with sand on which to draw figures): from Latin, from Greek abax, abak- 'slab, drawing board', of Semitic origin; probably related to Hebrew 'āḇāq 'dust'.
More definitions of abacusDefinition of abacus in:
- The US English dictionary