episcotister

episcotister
/euh pis"keuh tis'teuhr, ep'i skeuh tis"teuhr/, n.
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.
Also, episkotister.
[1900-05; < Gk episkot(ízein) to overshadow (see EPI-, SCOTIA, -IZE) + -IST + -ER1]

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Universalium. 2010.

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