Definition of nephoscope in English:

nephoscope

noun

Meteorology
  • An instrument used to determine the direction of motion of clouds and their angular velocity relative to a given point on the ground.

Origin

Late 19th century; earliest use found in Proceedings of the Royal Society of London. From ancient Greek νέϕος cloud + -scope, after German Nephoskop.

Pronunciation

nephoscope

/ˈnɛfəskəʊp/