MEDIUM

noun

1. (plural media or mediums) The chemistry of the surrounding environment, e.g. solid, liquid, gas, vacuum, or a specific substance such as a solvent.
2. (plural media or mediums) The materials or empty space through which signals, waves or forces pass.
3. (plural media or mediums) A format for communicating or presenting information.

adjective

1. Arithmetically average.
2. Of intermediate size, degree, amount etc.
3. Of meat, cooked to a point greater than rare but less than well done; typically, so the meat is still red in the centre.

adverb

1. To a medium extent