definition of the word medium

< Latin medium, neut. of medius (“‘middle’”); see middle.

• enPR: mē'diəm, IPA: /ˈmiːdiəm/, SAMPA: /"mi:di@m/
•  Audio (US)^{help, file}

  Rhymes: -iːdiəm

medium (plural media or mediums)

1. (plural media) The nature of the surrounding environment, e.g. solid, liquid, gas, vacuum, or a specific substance such as a solvent.
2. (plural media) The material or empty space through which signals, waves or forces pass.
3. (plural media) A format for communicating or presenting information.
4. (plural media, microbiology) A nutrient solution for the growth of cells in vitro.
5. (plural media) The means or channel by which an aim is achieved.
6. (plural mediums) A liquid base which carries pigment in paint.
7. (plural mediums, spiritualism) Someone who supposedly conveys information from the spirit world.
8. (plural mediums) Anything having a measurement intermediate between extremes, such as a garment or container.
9. (plural mediums) A person whom garments or apparel of intermediate size fit.

(format for communicating or presenting information):

• 1996: In some instances one can take advantage of differential carbohydrate fermentation capabilities of microorganisms by incorporating one or more carbohydrates in the medium along with a suitable pH indicator. Such media are called differential media (e.g., eosin methylene blue or MacConkey agar) and are commonly used to isolate enteric bacilli. — Medical Microbiology, ed. Samuel Baron, MD.

• (format for communicating or presenting information): differential medium

Definition from Wiktionary Content avaible with GNU Free Documentation License

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