Vernier Pierre

Ver·nier

(vĕr-nyā′), Pierre 1580-1637.
French mathematician and maker of scientific instruments, known especially for his invention of a highly exact scale.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.