fluor·o·scope 
(flrə-skōp′, flôr-)
(flrə-skōp′, flôr-)n.
A device equipped with a fluorescent screen on which the internal structures of an optically opaque object, such as the human body, may be continuously viewed as shadowy images formed by the differential transmission of x-rays through the object. Also called roentgenoscope.
tr.v. fluor·o·scoped, fluor·o·scop·ing, fluor·o·scopes
To examine the interior of (an object) with a fluoroscope.
fluor′o·scopic (-skŏpĭk) adj.
fluor′o·scopi·cal·ly adv.