| NOUN | artifact | Napier's rods, Napier's bones | a set of graduated rods formerly used to do multiplication and division by a method invented by John Napier |
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| Meaning | A set of graduated rods formerly used to do multiplication and division by a method invented by John Napier. | |
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| Synonym | Napier's bones | |
| Broader | calculator, calculating machine | A small machine that is used for mathematical calculations |
| Usage of | plural, plural form | The form of a word that is used to denote more than one |
| Catalan | àbac neperià, Àbac neperià | |
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