Meaning of nepheloscope in English:

nepheloscope

Pronunciation /ˈnɛfələskəʊp/

noun

historical Meteorology
  • James Pollard Espy's name for: an instrument for compressing and expanding moist air, used to study the formation of clouds.

Origin

Mid 19th century; earliest use found in Proceedings of the American Philosophical Society. From nephelo- + -scope.