enorthotrope

from The Collaborative International Dictionary of English v.0.48
Enorthotrope \En*or"tho*trope\, n. [Gr. ? in + ? upright,
   correct + ? to turn.]
   An optical toy; a card on which confused or imperfect figures
   are drawn, but which form to the eye regular figures when the
   card is rapidly revolved. See {Thaumatrope}.
   [1913 Webster]
    

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