单词	comparator
释义	comparator noun com·​par·​a·​tor kəm-ˈper-ə-tər  -ˈpa-rə- : a device for comparing something with a similar thing or with a standard measure Example Sentences Recent Examples on the Web One-third of the subjects, the comparator arm, will receive two full doses of Jynneos given 28 days apart. Helen Branswell, STAT, 7 Aug. 2022 Then and now, Porsche Macan Turbo is the closest comparator. Mark Ewing, Forbes, 21 Oct. 2021 Natanson says scientific results, patient safety, and the informed consent process all suffer when a usual-care comparator is absent. Charles Piller, Science | AAAS, 12 Aug. 2021 Is the clinical trial placebo controlled or has an active comparator? Alex Zhavoronkov, Forbes, 27 Apr. 2021 The interim analysis was triggered when 131 cases showed up in participants across the trials, who were given either two doses of AZD1222 or a comparator vaccine, the meningococcal vaccine MenACWY. Beth Mole, Ars Technica, 23 Nov. 2020 In med-tech, clinical trials typically use the company’s own past products or a statistical benchmark as a comparator. Joe Carlson, Star Tribune, 14 Oct. 2020 The one proposal that passed muster with the board, on a 9-6 vote, was another attempt to develop an alternative to human fetal tissue, using as a comparator fetal tissue that has already been obtained and stored in a biorepository. Meredith Wadman, Science | AAAS, 18 Aug. 2020 The comparator, which was used to detect a change in position of objects in space by comparing separate still photos, had been on loan to the Smithsonian Institution’s Air and Space Museum for the past five years. Weldon B. Johnson, azcentral, 7 Feb. 2020 See More Word History First Known Use 1883, in the meaning defined above Medical Definition comparator noun com·​par·​a·​tor kəm-ˈpar-ət-ər  1 : an apparatus used for determining concentration of dissolved substances (as hydrogen ions) in solution by color comparison with known standards 2 : an instrument, device, or set of charts (as for use in chemical analysis and medical diagnosis) for the determination and specification of colors by direct comparison with a standardized system of colors
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