Radiometry is a term used to describe the measurement of electromagnetic radiation. It is a scientific concept that includes the study of various aspects such as the properties and behavior of electromagnetic waves, their sources, and their interactions with matter. Synonyms for radiometry include radiation measurement, electromagnetic radiation analysis, and radiation detection. Other related terms include spectrometry, which refers to the measurement of the properties of light and other forms of electromagnetic radiation, and photometry, which focuses on the measurement of visible light. Overall, radiometry plays a crucial role in many fields such as astronomy, atmospheric sciences, and medical research, amongst others.