Definitions

1. noun

a device or instrument for measuring the amount of light falling on a surface, especially for recording the amount of solar radiation received during a period.

“The research team used a chromograph to analyze the solar radiation patterns in the desert ecosystem.”

2. noun

a device for recording the amount of light falling on a surface, especially for measuring the amount of solar radiation during a period.

“The scientists employed a chromograph to study the variations in solar radiation throughout the year.”