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episcotister

or e·pis·ko·tist·er

[ uh-pis-kuh-tis-ter, ep-i-skuh-tis-ter ]

noun

  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.


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Word History and Origins

Origin of episcotister1

1900–05; < Greek episkot ( ízein ) to overshadow ( epi-, scotia, -ize ) + -ist + -er 1

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episcopizeepisematic