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Newtonian

American  
[noo-toh-nee-uhn, nyoo-] / nuˈtoʊ ni ən, nju- /

adjective

  1. of or relating to Sir Isaac Newton or to his theories or discoveries.

    Newtonian physics.


Newtonian British  
/ njuːˈtəʊnɪən /

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

Other Word Forms

Etymology

Origin of Newtonian

First recorded in 1705–15; Newton + -ian

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Unlike Babson, who said he used Newtonian physics to divine the direction of the market, there’s real market logic behind Burry’s latest call.

From The Wall Street Journal May 13, 2026

Monjo’s theory helps unify scientific concepts of Newtonian gravity with our knowledge of electromagnetism.

From Salon Nov. 13, 2024

The researchers also showed that when the capsules are spherical, the metafluid behaves like a Newtonian fluid, meaning its viscosity only changes in response to temperature.

From Science Daily Apr. 3, 2024

A new staging presented by Bedlam makes a valiant effort to adapt Stoppard’s cerebral probes into chaos theory, Newtonian law, thermodynamics and metaphysics for a 2023 audience, but the result is a muddled one.

From New York Times Nov. 17, 2023

In fact, the orbits of the planets predicted by general relativity are almost exactly the same as those predicted by the Newtonian theory of gravity.

From "A Brief History of Time: And Other Essays" by Stephen Hawking

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