medium

noun (plural media or mediums)

• 1an agency or means of doing something:using the latest technology as a medium for job creation their primitive valuables acted as a medium of exchange
• a means by which something is communicated or expressed:here the Welsh language is the medium of instruction

• 2the intervening substance through which sensory impressions are conveyed or physical forces are transmitted:radio communication needs no physical medium between the two stations
• the substance in which an organism lives or is cultured: these cells are grown in a nutrient-rich medium
• a liquid (e.g. oil or water) with which pigments are mixed, with a binder, to make paint.

• 3a particular form of storage material for computer files, such as magnetic tape or discs.

• 4the material or form used by an artist, composer, or writer:oil paint is the most popular medium for glazing

• 5 (plural mediums) a person claiming to be in contact with the spirits of the dead and to communicate between the dead and the living.

• 6the middle quality or state between two extremes; a reasonable balance:the song soon discovers a happy medium between thrash and catchy pop

adjective

• halfway between two extremes of size, amount, length, etc.; average:John is six feet tall, of medium build plan for the medium term
• Cricket (of bowling or a bowler) of a pace intermediate between fast and slow bowling: Tate had early developed into a fast medium bowler