0 a square or rectangular frame holding an arrangement of small balls on metal rods or wires, used for counting or for doing calculations --
1 a flat slab (= piece of stone, etc.) at the top of a column --
2 a frame that holds thin metal rods with balls that slide on them, used for counting, adding, and subtracting --
The long and fascinating history of the abacus also turns up time and time again in counting history.
The name and logo of this software are based on the abacus calculation tool.
The nano-abacus has the potential to be used in a variety of nanotechnological inventions such as the nano-computer.
Using the abacus, find all the products of the divisor from 1 to 9 by reading the displayed numbers.
Each column has a capital of two parts, the upper, on which rests the lintels, being square and called the abacus.
Their abacus blocks are decorated with volutes containing human and animal figures.
Machines for calculating fixed numerical tasks such as the abacus have existed since antiquity, aiding in computations such as multiplication and division.
An inverted kalasha adorns the top, which also has a corbelled abacus.