scintillometer
/ˌsɪntɪˈlɑmɪtər/
noun
- An instrument that measures the scintillation (twinkling) of light from stars or other sources to study atmospheric conditions.
- Weather researchers deployed a scintillometer to study turbulence in the air.
- The portable scintillometer helped the team gather data on atmospheric stability.
- The astronomer used a scintillometer to measure how much the star's light twinkled.