Napier's bones


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Na·pi·er's bones

 (nā′pē-ərz, nə-pîrz′)
pl.n. (used with a sing. verb)
A set of graduated rods used to perform multiplication quickly.

[After John Napier.]

Napier's bones

pl n
(Mathematics) a set of graduated rods formerly used for multiplication and division
[C17: based on a method invented by John Napier]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Napier's bones - a set of graduated rods formerly used to do multiplication and division by a method invented by John Napier
calculating machine, calculator - a small machine that is used for mathematical calculations
plural, plural form - the form of a word that is used to denote more than one
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Napier's bones was a precursor of which calculating device?
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