PHOTOGRAPH

A photograph (photo) is an image created by light falling on a photosensitive surface, usually photographic film or an electronic image sensor, such as a CCD or a CMOS chip. Most photographs are created using a camera.

The word photograph was coined in 1839 by Sir John Herschel and is based on the Greek φῶς (phos), meaning “light,” and γραφή (graphê), meaning “drawing, writing,” together meaning “drawing with light.”