Quantum Theory noun [U] ( physics ) a theory that based on the idea that energy can only be changed in units that cannot be divided.
**Quantum Physics **noun [U] the branch of science that investiges the principles of QUANTUM THEORY to understand the behaviour of PARTICLES at the ATOM and SUB-ATOM level
Quantum mechanics noun [U] ( physics ) the branch of MECHANICS that deals with movement and force in pieces of matter smaller than ATOMS
Quantum noun (plural quanta) ( physics ) a very small quantity of ELECTROMAGNETIC energy.
Quantum leap noun a sudden, great and import change, improvement or development
Particle physics noun [U] the scientific study of very small pieces of matter that are parts of an ATOM
Particle noun :
- a very small piece of sth. : particle of gold/dust see also ALPHA PARTICLE, BETA PARTICLE, ELEMENTARY PARTICLE, SUBATOMIC PARTICLE
- ( grammar ) an adverb or a preposition that can combine with a verb to make a phrase verb: _In 'She tore up the letter', the word 'up' is a particle.