Sciotheric \Sci`o*ther"ic\, a. [Cf. L. sciothericon a sundial. See Sciatheric.]

Of or pertaining to a sundial.

Sciotheric telescope (Dialing), an instrument consisting of a horizontal dial, with a telescope attached to it, used for determining the time, whether of day or night.

Source: Webster's Revised Unabridged Dictionary (1913)