NAPIER'S BONES

Pronunciation (US): (GB):

Meaning:

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

Synonyms:

Napier's bones; Napier's rods

Classified under:

Nouns denoting man-made objects

Hypernyms ("Napier's bones" is a kind of...):

calculating machine; calculator (a small machine that is used for mathematical calculations; can be mechanical or electronic)

Domain usage:

plural; plural form (the form of a word that is used to denote more than one)