Medium
Medium may refer to:

Science and technology
Astronomy
Interplanetary medium, material that fills the solar system
Interstellar medium, the matter and energy between a galaxy's stars

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

Periodicals
The Medium (Rutgers), an entertainment weekly at Rutgers University
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), 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), 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

See also
Channel (disambiguation)
Conduit (disambiguation)
Media (disambiguation)
Median (disambiguation)
Meidum, a pyramid in Egypt
All pages with titles beginning with Medium