Any of the sciences concerned with the study of non-living systems, such as the nature and properties of energy, in contrast to biological sciences that study living systems.
Physics, chemistry, astronomy, geology and other disciplines concerned with the study of non-living things are examples of physical science.
Word origin: Middle English phisical, medical, from Medieval Latin physicālis, from Latin physica, physics; science (see science).
Compare: Biological Science.
See also: natural science.