1. An instrument that measures the cloudiness or turbidity of a liquid by determining how much light is scattered by suspended particles.
Usage: technical; used in chemistry, environmental science, and water quality testing

Examples

• The laboratory technician used a nephelometer to measure the turbidity of the water sample.
• A nephelometer can detect even small amounts of suspended particles in a solution.
• Water quality engineers rely on nephelometers to monitor pollution levels in rivers.
• The nephelometer reading indicated that the treated water was safe for consumption.
• Scientists calibrated the nephelometer before conducting the experiment.