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This glossary of physics is a list of definitions of terms and concepts relevant to physics, its sub-disciplines, and related fields, including mechanics, materials science, nuclear physics, particle physics, and thermodynamics.
A state is a complete description of the observable properties of a physical system. Sometimes the word is used as a synonym of "wave function" or "pure state". State vector synonymous to "wave function". Statistical ensemble A large number of copies of a system. System A sufficiently isolated part in the universe for investigation.
List of letters used in mathematics and science; Glossary of mathematical symbols; List of mathematical uses of Latin letters; Greek letters used in mathematics, science, and engineering; Physical constant; Physical quantity; International System of Units; ISO 31
Glossary of physics; Glossary of power electronics; Glossary of probability and statistics; List of topics characterized as pseudoscience; Glossary of psychiatry; Q.
physical chemistry, dealing with physical processes and their relations in the science of physical chemistry; physics education, set of methods to teach physics; physical oceanography, is the study of physical conditions and physical processes within the ocean, especially the motions and physical properties of ocean waters
Astronomy – studies the universe beyond Earth, including its formation and development, and the evolution, physics, chemistry, meteorology, and motion of celestial objects (such as galaxies, planets, etc.) and phenomena that originate outside the atmosphere of Earth (such as the cosmic background radiation).
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Another group of physics terminology terms, exciton, magnon, phonon, plasmon, phason, [7] polaron, roton [8] etc., refers to quasiparticles – quanta of corresponding excitations (spin, heat, plasma, polarization waves), which do not exist separately and were imagined by theoretists to consistently describe properties of solids and liquids.