medium
• noun (pl. media or mediums) 1 a means by which something is expressed, communicated, or achieved. 2 a substance through which a force or other influence is transmitted. 3 a form of storage for computer software, such as magnetic tape or disks. 4 a liquid with which pigments are mixed to make paint. 5 (pl. mediums) a person claiming to be able to communicate between the dead and the living. 6 the middle state between two extremes. • adjective between two extremes; average. — ORIGIN Latin, ‘middle’.
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