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Newtonian

[noo-toh-nee-uh n, nyoo-]
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adjective
  1. of or relating to Sir Isaac Newton or to his theories or discoveries: Newtonian physics.

Origin of Newtonian

First recorded in 1705–15; Newton + -ian
Related formsnon-New·to·ni·an, adjective, nounpost-New·to·ni·an, adjectivepre-New·to·ni·an, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for newtonian

Newtonian

adjective
  1. of, relating to, or based on the theories of Sir Isaac Newton
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012