WordReference Random House Unabridged Dictionary of American English © 2026
mi•cro•phys•ics
(mī′krə fiz′iks),USA pronunciation n. (used with a sing. v.)
mi′cro•phys′i•cal, adj.
- Physicsthe branch of physics dealing with physical objects that are not large enough to be observed and treated directly, as elementary particles, atoms, and molecules. Cf. particle physics.
- micro- + physics 1880–85