scioptic

Ancient Greek σκιά (skiá, “shadow”) + ὀπτικός (optikós, “of or pertaining to sight”).

scioptic (not comparable)

1. (dated) Of or relating to an optical arrangement for forming images in a darkened room.

   scioptic apparatus

• scioptic ball

• “scioptic”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.