释义 |
che·mo·stat \ˈ ̷ ̷ ̷ ̷ at chemo-+ˌstat\ noun (-s) Etymology: chem- + -stat (as in thermostat) : a device in which bacteria are kept uniformly suspended in a culture medium 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 |