The Collaborative International Dictionary
Sciatheric
Sciatheric \Sci`a*ther"ic\, Sciatherical \Sci`a*ther"ic*al\, a.
Belonging to a sundial. [Obs.]
--Sir T. Browne.
[1913 Webster] -- Sci`a*ther"ic*al*ly, adv. [Obs.]
--J.
Gregory.
Wiktionary
sciatheric
a. (context obsolete English) Belonging or relating to a sundial.