单词 | promoter |
释义 | promoter /preuh moh"teuhr/, n. 1. a person or thing that promotes, furthers, or encourages. 2. a person who initiates or takes part in the organizing of a company, development of a project, etc. 3. a person who organizes and provides financial backing for a sporting event or entertainment. 4. Chem. any substance that in small amounts is capable of increasing the activity of a catalyst. 5. Also called collector. Metall. a water-repellent reagent enhancing the ability of certain ores to float so that they can be extracted by the flotation process. 6. Genetics. a. a site on a DNA molecule at which RNA polymerase binds and initiates transcription. b. a gene sequence that activates transcription. 7. Obs. an informer. [1400-50; late ME; see PROMOTE, -ER1; r. earlier promotour < AF] |
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