"hypnoscope" meaning in English

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  "etymology_text": "From hypno- + -scope.",
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      "form": "hypnoscopes",
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          "ref": "1889, Humboldt library of science, number 113, page 13:",
          "text": "From several magnets combined von Hellenbach and Gessmann in Vienna constructed considerably stronger hypnoscopes, through which 66 per cent. of those examined showed the above mentioned sensitiveness […]",
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        "An instrument intended to determine a person's susceptibility to hypnotic influences."
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        "(dated) An instrument intended to determine a person's susceptibility to hypnotic influences."
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  "word": "hypnoscope"
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  "etymology_text": "From hypno- + -scope.",
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        "(dated) An instrument intended to determine a person's susceptibility to hypnotic influences."
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  "word": "hypnoscope"
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