Any nutrient system for the artificial cultivation of bacteria or other cells. It usually consists of a complex mixture of organic and inorganic materials. For example, the classic culture (growth) medium used for bacteria consists of nutrients (required by that bacteria) plus agar to solidify or semi-solidify the nutrient containing mass.
A substance in which a culture of microorganisms or tissue is grown in a laboratory, e.g. agar.
A nourishing substance used to grow microorganisms in the laboratory.
A substance on which mi croorganisms may grow. Those most commonly used are broths, gelatin, and agar, which contain the same basic ingredients.
A prearranged medium, often chemically characterized, utilized for cultivating microorganisms or other living cells in a laboratory setting without the need for a host organism.