Medium

1. (noun) (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. (noun) (plural media or mediums) The materials or empty space through which signals, waves or forces pass. 3. (noun) (plural media or mediums) A format for communicating or presenting information. 4. (noun) (plural media or mediums) The materials used to finish a workpiece using a mass finishing or abrasive blasting process. 5. (noun) (plural media or mediums) A nutrient solution for the growth of cells in vitro. 6. (noun) (plural media or mediums) The means, channel, or agency by which an aim is achieved. 7. (noun) (plural mediums or media) A liquid base which carries pigment in paint. 8. (noun) (plural mediums or media) A tool used for painting or drawing. 9. (noun) (plural mediums) Someone who supposedly conveys information from the spirit world. 10. (noun) (plural mediums) Anything having a measurement intermediate between extremes, such as a garment or container. 11. (noun) (plural mediums) A person whom garments or apparel of intermediate size fit. 12. (noun) (plural mediums) A half-pint serving of Guinness (or other stout in some regions). 13. (noun) A middle place or degree. 14. (noun) An average; sometimes the mathematical mean. 15. (noun) The mean or middle term of a syllogism, that by which the extremes are brought into connection. 16. (adjective) Arithmetically average. 17. (adjective) Of intermediate size, degree, amount etc. 18. (adjective) Of meat, cooked to a point greater than rare but less than well done; typically, so the meat is still red in the centre. 19. (adverb) To a medium extent