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Related to culture medium: agar
A liquid or gelatinous substance containing nutrients in which microorganisms, cells, or tissues are cultivated for scientific purposes.
(Microbiology) a nutritive substance, such as an agar gel or liquid medium, in which cultures of bacteria, fungi, animal cells, or plant cells are grown
me•di•um(ˈmi di əm)
n., pl. -di•a (-di ə) for 1-9, 11, -di•ums for 1-11, 17, n.
1. a middle state or condition; mean.
2. something intermediate in nature or degree.
3. an intervening substance, as air, through which a force acts or an effect is produced.
4. the element that is the natural habitat of an organism.
5. surrounding objects, conditions, or influences; environment.
6. an intervening agency, means, or instrument by which something is conveyed or accomplished: Words are a medium of expression.
7. one of the means or channels of general communication, information, or entertainment in society, as newspapers or television.
8. the substance in which specimens are displayed or preserved.
9. Also called culture medium. a nutrient material for the cultivation of microorganisms, tissues, etc.
10. a person through whom the spirits of the dead are alleged to be able to contact the living.
a. a size, as of garments, to fit the average figure.
b. an item in this size.
12. the material or technique with which an artist works.adj.
13. about halfway between extremes in degree, quantity, position, or quality.
[1575–85; < Latin: n. use of neuter of medius middle. See mid1]
usage: See media1.
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|Noun||1.||culture medium - (bacteriology) a nutrient substance (solid or liquid) that is used to cultivate micro-organisms|
bacteriology - the branch of medical science that studies bacteria in relation to disease