Meaning of DIAL in English
( n. )
An instrument, formerly much used for showing the time of day from the shadow of a style or gnomon on a graduated arc or surface; esp., a sundial; but there are lunar and astral dials. The style or gnomon is usually parallel to the earth's axis, but the dial plate may be either horizontal or vertical.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012