Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
Napier, John 1550-1617; Scot. mathematician: inventor of logarithms
Used by arrangement with John Wiley & Sons, Inc.
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
, John. Laird of Merchiston. 1550-1617.
Scottish mathematician who invented logarithms and introduced the use of the decimal point in writing numbers.