noun
- an instrument that measures the refractive index of a substance to determine its composition or concentration
Usage: scientific
Examples
- The winemaker used a refractometer to measure the sugar content of the grapes.
- Laboratory technicians calibrated the refractometer before testing the samples.
- A refractometer can quickly determine the salinity of seawater.
- The gemologist examined the diamond with a refractometer to verify its authenticity.
- Beekeepers often use a refractometer to test honey moisture levels.
- The refractometer reading indicated that the solution was more concentrated than expected.