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Newtonian

American

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

adjective

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

Newtonian physics.

Newtonian British

/ njuːˈtəʊnɪən /

adjective

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:

Newtonian

Under a straightforward Newtonian picture, stars orbiting farther from the center of a galaxy should travel more slowly.

From Science Daily ● Aug. 25, 2026

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

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

However, it was inconsistent with the Newtonian theory of gravity, which said that objects attracted each other with a force that depended on the distance between them.

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

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023