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Napier's bones

noun

1 Napier's bones

A set of graduated rods formerly used to do multiplication and division by a method invented by John Napier.

synonym: Napier's rods.

Polish: paƂeczki Napiera, kostki Napiera

Roget 85: numeration; numbering etc. v.; pagination; tale, recension, enumeration, summation, reckoning, computation, supputation; calculation, calculus; ... show more


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