\Flu*or"o*scope\, n. [Fluorescence + -scope.]
(Phys.)
An instrument for observing or exhibiting fluorescence.

\Flu*or"o*scope\, n. (Physics)
A fluorescent screen, with hood to protect the eyes, used for
observing the shadows cast by objects placed in the path of
the X rays. -- {Flu*or`o*scop"ic}, a.