Definition of aeroscope in US English:

aeroscope

noun

  • 1Any of various instruments for estimating the concentration of particles in the air by causing them to impinge on a surface to which they adhere.

  • 2A kind of hand-held motion picture camera driven by compressed air. Now historical.

Origin

Early 19th century (in an earlier sense). From aero- + -scope. Compare earlier aeroscopy.

Pronunciation

aeroscope

/ˈɛːrə(ʊ)skəʊp/