"Judas window" meaning in English

{
  "forms": [
    {
      "form": "Judas windows",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Judas window (plural Judas windows)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1989, James P. Sterba, Creighton Peden, Freedom, equality, and social change, page 314",
          "text": "A prisoner may be confined nude in a cell with a Judas window and intruded upon periodically while there. Strip searches are used arbitrarily, either in response to minor offenses or simply to intimidate.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A window enabling a prison guard to see into a cell without being seen by the prisoner."
      ],
      "id": "en-Judas_window-en-noun-RunSR5fl",
      "links": [
        [
          "window",
          "window"
        ],
        [
          "prison",
          "prison"
        ],
        [
          "guard",
          "guard"
        ],
        [
          "cell",
          "cell"
        ],
        [
          "prisoner",
          "prisoner"
        ]
      ]
    }
  ],
  "word": "Judas window"
}

{
  "forms": [
    {
      "form": "Judas windows",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Judas window (plural Judas windows)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1989, James P. Sterba, Creighton Peden, Freedom, equality, and social change, page 314",
          "text": "A prisoner may be confined nude in a cell with a Judas window and intruded upon periodically while there. Strip searches are used arbitrarily, either in response to minor offenses or simply to intimidate.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A window enabling a prison guard to see into a cell without being seen by the prisoner."
      ],
      "links": [
        [
          "window",
          "window"
        ],
        [
          "prison",
          "prison"
        ],
        [
          "guard",
          "guard"
        ],
        [
          "cell",
          "cell"
        ],
        [
          "prisoner",
          "prisoner"
        ]
      ]
    }
  ],
  "word": "Judas window"
}