media also mass media – n, [(the) S + sing./pl. v] the newspapers, television, and radio: The media have/has a lot of power today. | government control over the media

medium 1 adj of middle size, amount, quality, value, etc.: a medium-sized apple | of medium height

medium 2 n –dia or –diums 1 a method for giving information; form of art; He writes stories but the theatre is his favourite medium. | Television can be a medium for giving information and opinions, for amusing people, and for teaching them. 2 a substance in which objects or living things exist, or through which a force travels: A fish in water is in its natural medium. | Sound travels through the medium of air. 3 a middle position: There’s a happy medium ( = a correct average course of action) between eating all the time and not eating at all!

medium 3 n –diums a person who claims to have the power to receive messages from the spirits of the dead