abacus

Pronunciation

• (US) (UK) IPA ^(key): /ˈæbəkəs/

• Audio (US)

  (file)

• 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.