English Dictionary

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.
Source : opted (42641)  - auto

The graduated face of a timepiece, on which the time of day is shown by pointers or hands.
Source : opted (42642)  - auto

A miner's compass.
Source : opted (42643)  - auto

To measure with a dial.
Source : opted (42648)  - auto

To survey with a dial.
Source : opted (42649)  - auto