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Newtonian

American

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

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.

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

Studies on the shear behavior of viscoelastic fluids, created by introducing polymers into Newtonian fluids, have already been conducted in recent years.

From Science Daily • Apr. 4, 2024

In 1973, a young man named Uri Geller appeared on one of the BBC’s most popular television shows, “The Dimbleby Talk-In,” and announced that the laws of Newtonian physics did not apply to him.

From New York Times • Jul. 8, 2023

This is the meaning of the word “universal” as applied to Newtonian gravitation.

From "Cosmos" by Carl Sagan

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