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physics

American  
[fiz-iks] / ˈfɪz ɪks /

noun

(used with a singular verb)
  1. the science that deals with matter, energy, motion, and force.


physics British  
/ ˈfɪzɪks /

noun

  1. the branch of science concerned with the properties of matter and energy and the relationships between them. It is based on mathematics and traditionally includes mechanics, optics, electricity and magnetism, acoustics, and heat. Modern physics, based on quantum theory, includes atomic, nuclear, particle, and solid-state studies. It can also embrace applied fields such as geophysics and meteorology

  2. physical properties of behaviour

    the physics of the electron

  3. archaic natural science or natural philosophy

"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

physics Scientific  
/ fĭzĭks /
  1. The scientific study of matter, energy, space, and time, and of the relations between them.

  2. The behavior of a given physical system, especially as understood by a physical theory.


physics Cultural  
  1. The scientific study of matter and motion. (See mechanics, optics, quantum mechanics, relativity, and thermodynamics.)


Etymology

Origin of physics

First recorded in 1580–90; physic, -ics

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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.

In an era where pitchers throw ridiculously hard and have sliders that appear to defy the laws of physics, getting a hit is as difficult as ever.

From The Wall Street Journal

Traditional physics models have consistently overestimated how tall a foam must be before liquid begins to leak out.

From Science Daily

One promising solution is quantum cryptography, which relies on the laws of physics rather than mathematical complexity to keep data secure.

From Science Daily

This holds the same profound implications for defense and intelligence today as nuclear physics did 80 years ago.

From The Wall Street Journal

The two sat to discuss quantum physics and religion, he said.

From The Wall Street Journal