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abacus

abacus

7 6.4
A frame with rods and beads that you move to do arithmetic
  • noun
  • /ˈæbəkəs/
translation icon : ábaco
  • Despite modern technology, some people still prefer using an abacus for manual calculations.
  • abacus beads
  • using an abacus
  • Chinese abacus

There is no giant Abacus, no giant QuickBooks in the sky that keeps track of who deserves what in this world.

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Examples

  • The Maya, like the Inca, created abacus-like devices for fast mathematical operations.

    Academic text (2002)
  • The teacher used an abacus to demonstrate basic addition to her students.

  • I have an abacus at home for that.

  • On an abacus or something?

  • An abacus can calculate as fast as a computer.

  • I came home wearing a canvas book bag on my back, filled with a math book and an abacus.

    Fiction book (2001)
  • I use an abacus.

  • Performing arithmetic using an imaginary abacus is the fastest way to perform mental calculations.

    Blog text (27)
  • Lim watched him tip the abacus slightly, the beads sliding silently to one side, erasing the last calculation.

    Fiction book (1999)
  • Nana Rao hissed in disapproval, rattled some beads along the wire bars of his abacus, and shook his head.

    Fiction book (2002)

Synonyms

soroban
vsabacus
  • Specialized
9.9

A Japanese abacus for doing simple arithmetic with beads

is the general term for such bead frames used for arithmetic across cultures

How Advanced

computer
  • Archaic
495 9.5
calculator
81 1.3
calculating machine
  • Archaic
1 5.9
abacus
7 6.4

Surface Forms

abacus singular
abaci plural

Etymology

Abacus comes from the Greek word abax, which means 'table' or 'board'. Think of an abacus as a small 'table' for numbers where beads slide, so it is a simple tool for doing math.