What does the "photo-" prefix refer to?

The prefix "photo-" originates from the Greek word "phōs," meaning light. This prefix is commonly used in various scientific and technical terms that involve light, such as "photography," which refers to the process of capturing images using light, or "photosynthesis," the method by which plants convert light energy into chemical energy. The association of "photo-" with light is a fundamental aspect of many disciplines, especially in biology and physics, where understanding light's role is essential to numerous concepts. This understanding of "photo-" as light provides a clear framework for many terms used in multiple contexts throughout science and education.