Medium

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Look up medium in Wiktionary, the free dictionary.

Medium may refer to:

Medium (communication), storage and/or transmission tools used to store and deliver information or data
Transmission medium, in physics and telecommunications, any material substance which can propagate waves or energy
- Optical medium, material through which electromagnetic waves propagate
Medium of instruction, any language or other tools used to educate, train, or instruct

Processing medium, in industrial engineering, a material that plays a role in manufacturing processes
Excitable medium, a nonlinear dynamic system which has the capacity to propagate a wave
Gain medium, a quantum system that allows amplification of power (gain) of waves passing through (usually by stimulated emission)
Growth medium (or culture medium), in biotechnology, an object in which microorganisms or cells experience growth
Interplanetary medium, in astronomy, material which fills the solar system
Interstellar medium, in astronomy, the matter and energy content that exists between the stars within a galaxy
Porous medium, in engineering and earth sciences, a material that allows fluid to pass through it, such as sand

Artistic medium
The Medium, an opera by Gian-Carlo Menotti
- The Medium (1951 film), a film version of the opera directed by Menotti
The Medium (1992 film), an English film from Singapore
Medium (TV series), a television series about a research medium for a district attorney's office

Medium (spirituality), a practice in which a person claims to be an intermediary between the physical world and the spiritual world
Medium Productions, a record label
The Medium (Rutgers), an entertainment weekly at Rutgers
Medium (company)