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
There have been all sorts of efforts to advance physics beyond the Standard Model.
—
Big Think, 28 Oct. 2025
The project brought together researchers in chemistry, physics, and materials engineering.
—Aamir Khollam, Interesting Engineering, 27 Oct. 2025
Since the amount of energy lost through radiation depends on the elements present, oversimplifying their behavior means missing the key physics behind how the solar atmosphere really works.
—Pranjal Malewar, New Atlas, 27 Oct. 2025
Vigna studied physics at the University of Pisa and then spent 30 years making his way up from engineer to executive at the French chipmaker STMicroelectronics.
—Phil Wahba, Fortune, 27 Oct. 2025
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Big Think, 28 Oct. 2025
The project brought together researchers in chemistry, physics, and materials engineering.
—Aamir Khollam, Interesting Engineering, 27 Oct. 2025
Since the amount of energy lost through radiation depends on the elements present, oversimplifying their behavior means missing the key physics behind how the solar atmosphere really works.
—Pranjal Malewar, New Atlas, 27 Oct. 2025
Vigna studied physics at the University of Pisa and then spent 30 years making his way up from engineer to executive at the French chipmaker STMicroelectronics.
—Phil Wahba, Fortune, 27 Oct. 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 30 Oct. 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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