flunkey
- n a male servant (especially a footman)
- n a person of unquestioning obedience
flunky
- n a male servant (especially a footman)
- n a person of unquestioning obedience
fluor
- n a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine
fluorapatite
- n a form of apatite in which fluorine predominates over chlorine
fluorescein
- n a yellow dye that is visible even when highly diluted; used as an absorption indicator when silver nitrate solution is added to sodium chloride in order to precipitate silver chloride (turns pink when no chloride ions are left in solution and negative fluorescein ions are then absorbed)
fluorescein isocyanate
- n a fluorochrome commonly conjugated with antibodies for use in indirect immunofluorescence
fluorescein isothiocyanate
- n a fluorochrome commonly conjugated with antibodies for use in indirect immunofluorescence
fluoresceine
- n a yellow dye that is visible even when highly diluted; used as an absorption indicator when silver nitrate solution is added to sodium chloride in order to precipitate silver chloride (turns pink when no chloride ions are left in solution and negative fluorescein ions are then absorbed)