Medium

From Latin medium, neuter of medius ("middle"). Compare middle.

Full definition of medium

(plural media or mediums)

(plural media or mediums) The nature of the surrounding environment, e.g. solid, liquid, gas, vacuum, or a specific substance such as a solvent.
(the material or empty space through which signals, waves or forces pass)(plural media or mediums) The material or empty space through which signals, waves or forces pass.

Francis BaconWhether any other liquors, being made mediums, cause a diversity of sound from water, it may be tried.
DenhamI must bring together
All these extremes; and must remove all mediums.

(a format for communicating or presenting information)(plural media or mediums) A format for communicating or presenting information.
(plural media or mediums, engineering) The materials used to finish a workpiece using a mass finishing or abrasive blasting process.
(plural media or mediums, microbiology) A nutrient solution for the growth of cells in vitro.

1996, Samuel Baron (editor), Medical Microbiology: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.

(plural media or mediums) The means or channel by which an aim is achieved.
(plural mediums or media) A liquid base which carries pigment in paint.
(plural mediums or media, painting) A tool used for painting or drawing.Acrylics, oils, charcoal and gouache are all mediums I used in my painting.
(plural mediums, spiritualism) Someone who supposedly conveys information from the spirit world.
(plural mediums) Anything having a measurement intermediate between extremes, such as a garment or container.
(plural mediums) A person whom garments or apparel of intermediate size fit.
(plural mediums, Ireland, dated, informal) A half-pint serving of Guinness (or other stout in some regions).
A middle place or degree.a happy medium

(logic) The mean or middle term of a syllogism, that by which the extremes are brought into connection.

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