microphotometer
/ˌmaɪkrəfoʊˈtɑmɪtər/
noun
- An instrument used to measure the intensity of light in very small areas, often used in astronomy or spectroscopy.
- They calibrated the microphotometer before the experiment.
- A microphotometer can detect tiny changes in light from a sample.
- The astronomer used a microphotometer to analyze the star's spectrum.
Synonyms