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electrodynamics

American  
[ih-lek-troh-dahy-nam-iks] / ɪˌlɛk troʊ daɪˈnæm ɪks /

noun

(used with a singular verb)
  1. the branch of physics that deals with the interactions of electric, magnetic, and mechanical phenomena.


electrodynamics British  
/ ɪˌlɛktrəʊdaɪˈnæmɪks /

noun

  1. (functioning as singular) the branch of physics concerned with the interactions between electrical and mechanical forces

"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

electrodynamics Scientific  
/ ĭ-lĕk′trō-dī-nămĭks /
  1. The scientific study of electric charge and electric and magnetic fields, along with the forces and motions those fields induce.

  2. See also electromagnetism


Etymology

Origin of electrodynamics

First recorded in 1820–30; electro- + dynamics

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:

The team's approach is based on cavity quantum electrodynamics, commonly known as cavity QED.

From Science Daily Jun. 6, 2026

During a talk at a conference, Richard Feynman, the Nobel Prize-winning physicist who devised much of quantum electrodynamics, “without much difficulty shot me to pieces, which I deserved,” he said.

From New York Times May 8, 2023

The first thing Mr. Dyson did was write down the conclusions he had reached on his cross-country bus ride, and those concepts evolved into his paper on quantum electrodynamics.

From Washington Post Feb. 28, 2020

The history of physics of course features successive “leaps” and unifications: Newton, Maxwell, Einstein, quantum mechanics, quantum electrodynamics, and the “standard model.”

From Scientific American Mar. 17, 2018

This caused a lot of trouble when the theory of quantum electrodynamics first came out.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife

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