WordNet: Napier's bones, Napier's rods
a set of graduated rods formerly used to do multiplication and division by a method invented by John Napier
- domain: usage plural, plural form
- hypernym calculating machine, calculator
Napier's bones
- (suomi) Napierin luut (synonyymi)
Napier's rods
- (suomi) Napierin luut (synonyymi)