noun
- Plural of actinometer; instruments that measure the intensity of radiation, especially solar radiation or ultraviolet light.
Usage: technical; scientific
Examples
- Scientists used actinometers to measure the strength of UV radiation at different altitudes.
- The laboratory installed several actinometers to monitor solar intensity throughout the day.
- Actinometers are essential tools in atmospheric research and climate studies.
- The meteorologist calibrated the actinometers before beginning the field experiment.
- Modern actinometers can detect even small variations in radiation levels.