单词	nephelometer
释义	nephelometer /ˌnɛfəˈlɒmɪtə / noun An instrument for measuring the size and concentration of particles suspended in a liquid or gas, especially by means of the light they scatter.In the present study, we investigated the technical feasibility of using the nephelometer to measure breath-by-breath particle deposition and to monitor exposure environments in field studies.... It's also very cloudy, something you can measure with a nephelometer, a tool that transmits light across a few centimeters of seawater and measures how much is absorbed The portable nephelometer could, therefore, respond to changes in the particle concentration in inhaled versus exhaled air. Origin Late 19th century: from Greek nephelē 'cloud' + -meter.
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