Medium may refer to:

Science and technology

Aviation

*Medium bomber, a class of war plane *Tecma Medium, a French hang glider design

Communication

* Media (communication), tools used to store and deliver information or data * Medium of instruction, a language or other tool used to educate, train, or instruct

Wave physics

* Transmission medium, in physics and telecommunications, any material substance which can propagate waves or energy ** Active laser medium (also called gain medium or lasing medium), a quantum system that allows amplification of power (gain) of waves passing through (usually by stimulated emission) ** Optical medium, in physics, a material through with electromagnetic waves propagate * Excitable medium, a non-linear dynamic system which has the capacity to propagate a wave

Other uses in science and technology

* Data storage medium, a storage container in computing * 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 * Processing medium, in industrial engineering, a material that plays a role in manufacturing processes

Arts, entertainment, and media

Films

* The Medium (1921 film), ''The Medium'' (1921 film), a German silent film * The Medium (1951 film), ''The Medium'' (1951 film), a film version of the opera directed by Menotti * The Medium (1960 film), ''The Medium'' (1960 film), an Australian television play * The Medium (1992 film), ''The Medium'' (1992 film), an English film from Singapore * The Medium (2021 film), ''The Medium'' (2021 film), a Thai film

Periodicals

* The Medium (Rutgers), ''The Medium'' (Rutgers), an entertainment weekly at Rutgers University * The Medium (University of Toronto Mississauga), ''The Medium'' (University of Toronto Mississauga), a student newspaper at the University of Toronto Mississauga

Other arts, entertainment, and media

* List of art media (plural: ''media''), materials and techniques used by an artist to produce a work * Medium (TV series), ''Medium'' (TV series), an American television series starring Patricia Arquette about a medium (psychic intermediary) working as a consultant for a district attorney's office * Medium (website), a publishing platform * Medium Productions, a record label * ''The Medium'', a 1946 opera by Gian-Carlo Menotti * Medium (band), an American rock band * The Medium (video game), ''The Medium'' (video game), a 2021 psychological horror video game developed by Bloober Team.

People

* Medium, a practitioner of mediumship, the practice of purportedly mediating communication between spirits of the dead and living human beings * Tau (rapper) (born 1986), Polish rapper formerly known as "Medium"

Other uses

* Medium, a doneness (gradation of cooked meat) * Medium pace bowling, another name for fast bowling in the sport of cricket