Main Entry: ¹me·di·um

Pronunciation: \ˈmē-dē-əm\

Function: noun

Inflected Form(s): plural mediums or me·dia \-dē-ə\

Etymology: Latin, from neuter of medius middle — more at mid

Date: 1589

1 a : something in a middle position b : a middle condition or degree : mean
2 : a means of effecting or conveying something: as a (1) : a substance regarded as the means of transmission of a force or effect (2) : a surrounding or enveloping substance (3) : the tenuous material (as gas and dust) in space that exists outside large agglomerations of matter (as stars) <interstellar medium> b plural usually media (1) : a channel or system of communication, information, or entertainment — compare mass medium (2) : a publication or broadcast that carries advertising (3) : a mode of artistic expression or communication (4) : something (as a magnetic disk) on which information may be stored c : go-between, intermediary d plural mediums : an individual held to be a channel of communication between the earthly world and a world of spirits e : material or technical means of artistic expression
3 a : a condition or environment in which something may function or flourish b plural media (1) : a nutrient system for the artificial cultivation of cells or organisms and especially bacteria (2) : a fluid or solid in which organic structures are placed (as for preservation or mounting) c : a liquid with which pigment is mixed by a painter

usage see media