Wiktionary
microphysics
n. (context physics English) That branch of physics that deals with objects smaller than a molecule
Wikipedia
Microphysics
The term microphysics refers to areas of physics that study phenomena that take place on the microscopic scale (length scales smaller than 1 mm), such as:
- Atomic physics
- Cloud physics
- Mesoscopic physics
- Molecular physics
- Nanotechnology
- Nuclear physics
- Particle physics
- Plasma physics
- Quantum mechanics
- String theory
Usage examples of "microphysics".
Science was moving from a world of macrophysics, where objects could be seen and held and measured, to one of microphysics, where events transpire with unimaginable swiftness on scales far below the limits of imagining.
I knew enough of microphysics to recognize a series of pictures of ion tracks in a bubble chamber.