plural in form but singular or plural in construction
1
: a science that deals with matter and energy and their interactions
2
a
: the physical processes and phenomena of a particular system
b
: the physical properties and composition of something
Examples of physics in a Sentence
Recent Examples on the Web
My postdoc prospects after finishing a doctorate in physics at Harvard were in Europe.
—
Vineer Bhansali, Forbes.com, 9 Sep. 2025
The parallels between salamanders and chameleons indicate that the underlying physics does not depend on rare or exotic tissues.
—Kaif Shaikh, Interesting Engineering, 9 Sep. 2025
And many additional ideas in theoretical physics seek to add in additional symmetries, additional dimensions, additional extra particles, or additional unification frameworks.
—Ethan Siegel, Big Think, 9 Sep. 2025
Jung’s fascination with synchronous metaphysics is even more apparent in his 20-plus year correspondence with Wolfgang Pauli, a pioneer of quantum physics.
—Literary Hub, 8 Sep. 2025
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Vineer Bhansali, Forbes.com, 9 Sep. 2025
The parallels between salamanders and chameleons indicate that the underlying physics does not depend on rare or exotic tissues.
—Kaif Shaikh, Interesting Engineering, 9 Sep. 2025
And many additional ideas in theoretical physics seek to add in additional symmetries, additional dimensions, additional extra particles, or additional unification frameworks.
—Ethan Siegel, Big Think, 9 Sep. 2025
Jung’s fascination with synchronous metaphysics is even more apparent in his 20-plus year correspondence with Wolfgang Pauli, a pioneer of quantum physics.
—Literary Hub, 8 Sep. 2025
See All Example Sentences for physics
Cite this Entry
“Physics.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/physics. Accessed 12 Sep. 2025.
Copy CitationKids Definition
physics
noun
phys·ics
ˈfiz-iks 
1
: a science that deals with matter and energy and their actions upon each other in the fields of mechanics, heat, light, electricity, sound, and the atomic nucleus
2
: physical composition, characteristics, or processes
the physics of sound
Medical Definition
physics
noun, plural in form but singular or plural in construction
phys·ics
ˈfiz-iks
: a science that deals with matter and energy and their interactions in the fields of mechanics, acoustics, optics, heat, electricity, magnetism, radiation, atomic structure, and nuclear phenomena
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