abacus

Pronunciation

• (UK) (US) IPA ^(key): /ˈæbəkəs/

• Audio (US)

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• Hyphenation: a‧ba‧cus

Noun

Singular abacus

Plural abacuses or abaci

An abacus

1. (countable) An abacus is an ancient calculating device. It is made of a frame with beads on various rods.