pho·tog·ra·phy
Noun
The word "photography" was created from the Greek roots φωτός (phōtos), genitive of φῶς (phōs), "light" and γραφή (graphé) "representation by means of lines" or "drawing", together meaning "drawing with light".
the art or process of producing images by the action of radiant energy and especially light on a sensitive surface (such as film or an optical sensor) - Merriam-Webster
the process or art of producing images of objects on sensitized surfaces by the chemical action of light or of other forms of radiant energy, as x-rays, gamma rays, or cosmic rays. - dictionary.com