fluoroscopen.

1879 E. G. Cutler & E. S. Wood tr. C. Neubauer & J. Vogel Anal. Urine 204 If the fluid is placed in the fluorescope constructed by Kerner and represented in fig. 7, the fluorescence will be seen most beautifully.

1892 Res. Loomis Soc. 2 96 When Kerner's ‘fluoroscope’, which consists of a Geissler tube within an outer tube, into which the solution to be examined is introduced, may permit of the detection of quinin in solutions of higher dilution than 1:500,000.

1918 C. A. Mitchell tr. E. Tognoli Reagents & Reactions 128 It is possible, by the use of Kerner's fluoroscope, to recognise quinine in solutions containing 1 part in 8,000,000.

1893 Astron. & Astrophysics 12 363 The second method consists in forming an image of the Sun and the surrounding region of the Sun on a very thin well ground plate of uranium glass or some other transparent fluorescent substance, and observing it by means of a fluoroscope.

1896 Lancaster (Pa.) New Era 2 Apr. 2 He [sc. Edison] calls his instrument the Fluoroscope.

1931 E. Ferber Amer. Beauty i. 7 They stood him in front of a glass-faced thing mellifluously called a fluoroscope and resembling an oversized public telephone booth.

1978 Pop. Mech. June 20/1 Airport security guards will tell you their fluoroscope baggage examiner will not fog your camera film.

1993 C. MacDougall Lights Below 14 If there's an increase in your hunger, sudden weight loss, anything like that, let us know and we'll arrange a fluoroscope, shoot some dye in you, see where he is and what's his size.

2003 Smithsonian July 23/1 The shoe-fitting fluoroscope used cutting edge technology—the x-ray—to reveal the bones and soft tissue of the foot inside the shoe, ostensibly for a better fit.