radiograph
radio brightness
solar telescope
subreflector
microspectrophotometer
microvideoscope
hydrographer
contrast radiography
hydrometry
o-scope
stereoradiography
colpomicroscopy
spectroheliokinematograph
perspective glass
polytomography
dioptric
glow lamp
radioscope
hydrographically
hydrographic
hydrodelineate
dynameter
densimeter
rectoscope
photophore
X-ray machine
cryptoscope
superscope
labral
bathyscope
entoptoscope
telescopic
videostroboscope
radioscopical
hydroplane
hydrotreatment
hydroplethysmometer
radiographics
fluoroscope
roentgenoscope
hygrodeik
photomacroscopy
coude system
coude telescope