Source : Webster's Revised Unabridged Dictionary (1913)

Angioscope \An"gi*o*scope\ ([a^]n"j[i^]*[-o]*sk[=o]p), n.
   [Angio- + -scope.]
   An instrument for examining the capillary vessels of animals
   and plants. --Morin.

Source : WordNet®

angioscope
     n : a modified microscope used to study capillary vessels