Chronoscope and Gnomon

Chronoscope noun - An instrument for accurate measurements of small intervals of time.

Gnomon and chronoscope are semantically related in device that tells time topic. In some cases you can use "Gnomon" instead a noun "Chronoscope".

Gnomon noun - Indicator provided by the stationary arm whose shadow indicates the time on the sundial.

Chronoscope and gnomon are semantically related in device that tells time topic. You can use "Chronoscope" instead a noun "Gnomon".