Meaning of episcotister

e•pis•co•tist•er

Pronunciation: (u-pis'ku-tis"tur, ep"i-sku-tis'tur), [key]
— n.
  1. a disk with a sector removed that when rotated in front of a light source allows the periodic passage of flashes of light: used in studying the motion of a body.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.