noun
- Plural of hygroscope; instruments or devices that indicate or measure changes in atmospheric humidity without quantifying the exact amount of moisture.
Usage: scientific instrument; less common than hygrometer
Examples
- The laboratory was equipped with several hygroscopes to monitor moisture levels in the air.
- Early hygroscopes used materials like human hair or wood that visibly changed with humidity.
- Unlike hydrometers, hygroscopes simply show whether the air is becoming more or less humid.
- The scientist calibrated the hygroscopes before beginning the experiment.