chemostat

noun
che·​mo·​stat | \ ˈkē-mə-ˌstat How to pronounce chemostat (audio) , ˈkem-ə- How to pronounce chemostat (audio) \

Medical Definition of chemostat

: a device in which bacteria are kept uniformly suspended in a culture medium that is constantly renewed and maintained chemically unaltered by a continuous flow of new medium through it and which is used especially in quantitative studies of mutation rates

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