sundial![click to hear](/images/speaker.jpg)
Vertical or horizontal face with divisions that correspond to the hours of the day, which are indicated by the shadow of a gnomon cast by the Sun.
shadow ![click to hear](/images/speaker.jpg)
Dark area that results when the gnomon blocks the sunlight and indicates the time in accordance with the position of the Sun.
gnomon ![click to hear](/images/speaker.jpg)
Part aligned with the Earth’s axis; its shadow indicates the time as it moves over the sundial.
dial ![click to hear](/images/speaker.jpg)
Face marked with numbers over which shadows are cast by the gnomon to indicate the approximate time of day.