Napier's bones

play
noun Na·pi·er's bones \ˈnā-pē-ərz-\

Definition of Napier's bones

  1. :  a set of graduated rods (as of wood or bone) invented by John Napier and used for multiplication and division based on the principles of logarithms

1646

First Known Use of napier's bones

1646


Learn More about napier's bones


Seen and Heard

What made you want to look up Napier's bones? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

acid in temper, mood, or tone

Get Word of the Day daily email!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!