"cephalostat" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "cephalo",
        "3": "stat"
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      "expansion": "cephalo- + -stat",
      "name": "confix"
    }
  ],
  "etymology_text": "cephalo- + -stat",
  "forms": [
    {
      "form": "cephalostats",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "cephalostat (plural cephalostats)",
      "name": "en-noun"
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  ],
  "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"
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          "source": "w"
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        {
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          "name": "English terms prefixed with cephalo-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -stat",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A framework that holds the head stationary for radiography and similar procedures"
      ],
      "id": "en-cephalostat-en-noun-bpgMusMM",
      "links": [
        [
          "framework",
          "framework"
        ],
        [
          "head",
          "head"
        ],
        [
          "stationary",
          "stationary"
        ],
        [
          "radiography",
          "radiography"
        ]
      ],
      "synonyms": [
        {
          "word": "cephalometer"
        }
      ]
    }
  ],
  "word": "cephalostat"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "cephalo",
        "3": "stat"
      },
      "expansion": "cephalo- + -stat",
      "name": "confix"
    }
  ],
  "etymology_text": "cephalo- + -stat",
  "forms": [
    {
      "form": "cephalostats",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "cephalostat (plural cephalostats)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "English entries with incorrect language header",
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        "English terms prefixed with cephalo-",
        "English terms suffixed with -stat"
      ],
      "glosses": [
        "A framework that holds the head stationary for radiography and similar procedures"
      ],
      "links": [
        [
          "framework",
          "framework"
        ],
        [
          "head",
          "head"
        ],
        [
          "stationary",
          "stationary"
        ],
        [
          "radiography",
          "radiography"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "cephalometer"
    }
  ],
  "word": "cephalostat"
}