noun

abacus

abacus

He learned to calculate on an abacus.

He learned to calculate on an abacus.

The abacus is an ancient counting tool.

The abacus is an ancient counting tool.

((an abacus)) a noun used as a subject or object The abacus is an ancient counting tool.

Synonyms: counting frame, soroban (Japanese)

From Latin 'abacus', from Greek 'abax' meaning 'slab' or 'counting board'.

Picture 'a bead' on a wire for counting. 'A-bead-cus'.

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