单词	fluorescein
释义	fluorescein noun fluo·​res·​ce·​in flu̇-ˈre-sē-ən  flȯ- : a yellow or red crystalline dye C20H12O5 with a bright yellow-green fluorescence in alkaline solution Example Sentences Recent Examples on the Web Researchers dumped a dye, fluorescein, into the wells and monitored the marine waters along the beaches. Warren Cornwall, Science | AAAS, 23 Apr. 2020 The polyacrylate was then bathed in molecules of fluorescein, an orange dye with a yellow-green fluorescence that's commonly used as a scientific marker. David Grossman, Popular Mechanics, 18 Dec. 2018 With the fluorescein in place, scientists then add an acid that hinders the negative charges in the polyacrylate gel. David Grossman, Popular Mechanics, 18 Dec. 2018 Our doctor placed yellow drops containing fluorescein sodium in his eye. Dan Olson, WIRED, 29 Sep. 2008 Word History First Known Use 1871, in the meaning defined above Medical Definition fluorescein noun flu·​o·​res·​ce·​in -ˈes-ē-ən  : a yellow or red crystalline dye C20H12O5 with a bright yellow-green fluorescence in alkaline solution that is used as the sodium salt as an aid in diagnosis (as of lesions and foreign bodies in the cornea or of brain tumors)
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