Medium

n. (pL media ors) 1 middle quality, degree, etc. between extremes (find a happy medium). 2 means of communication (medium of television). 3 substance, e.g. air, through which senseimpressions are conveyed. 4 physical environment etc. of a living organism. 5 means. 8 material or form used by an artist, composer, etc. 7 liquid (e.g. oil or gel) used for diluting paints. 8 (pl. s) person claiming to communicate with the dead. adj. 1 between two qualities, degrees, etc. 2 average (of medium height). [Latin medius middle]