Nephelodometer n. : An instrument for reckoning the distances or velocities of clouds.

Example:


Taxonomy
Nephelometer, turbidity, Formazin, FTU, particles, Nephelometric Turbidity Units, special case, turbidity measurements, free encyclopedia, turbidimeter, FNU, detector, instrument, light reflected, standard unit, NTU, Gas-phase, water treatment.

Defination from the web:
nephelometer installation at Acadia National Park. ... adaptor goggles · Disdrometer · Field mill · Hygrometer · Ice Accretion Indicator · LIDAR · Lightning detector · Nephelometer · Nephoscope · Pan ...