"main frame" meaning in English

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    {
      "form": "main frames",
      "tags": [
        "plural"
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    }
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      "expansion": "main frame (plural main frames)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "langcode": "en",
          "name": "Mechanical engineering",
          "orig": "en:Mechanical engineering",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "64 27 9",
          "kind": "other",
          "name": "English entries with incorrect language header",
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          "source": "w+disamb"
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          "ref": "1951 March, “British Railways Standard \"Britannia\" Class 4-6-2 Locomotives”, in Railway Magazine, page 186:",
          "text": "The main frames are of 1¼-in. thick plates spaced 3 ft. 2½ in. apart, the centre lines coinciding with the centre of the axlebox guide faces.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The rigid frame upon which the moving parts of a machine are mounted; a chassis."
      ],
      "id": "en-main_frame-en-noun-axIwHvAU",
      "links": [
        [
          "mechanical engineering",
          "mechanical engineering"
        ],
        [
          "chassis",
          "chassis"
        ]
      ],
      "raw_glosses": [
        "(mechanical engineering) The rigid frame upon which the moving parts of a machine are mounted; a chassis."
      ],
      "topics": [
        "engineering",
        "mechanical",
        "mechanical-engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    },
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          "langcode": "en",
          "name": "Nautical",
          "orig": "en:Nautical",
          "parents": [],
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        }
      ],
      "glosses": [
        "The widest structural frame located near the middle of a ship."
      ],
      "id": "en-main_frame-en-noun-6HR4Wa~2",
      "links": [
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          "nautical"
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        [
          "shipbuilding",
          "shipbuilding"
        ],
        [
          "structural",
          "structural"
        ],
        [
          "frame",
          "frame"
        ],
        [
          "middle",
          "middle"
        ],
        [
          "ship",
          "ship"
        ]
      ],
      "raw_glosses": [
        "(nautical, shipbuilding) The widest structural frame located near the middle of a ship."
      ],
      "related": [
        {
          "_dis1": "34 51 15",
          "word": "subframe"
        }
      ],
      "topics": [
        "business",
        "manufacturing",
        "nautical",
        "shipbuilding",
        "transport"
      ]
    },
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        {
          "word": "mainframe"
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        "Alternative form of mainframe."
      ],
      "id": "en-main_frame-en-noun-kB2By~hZ",
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          "mainframe#English"
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  "word": "main frame"
}

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  "forms": [
    {
      "form": "main frames",
      "tags": [
        "plural"
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  "head_templates": [
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      "args": {},
      "expansion": "main frame (plural main frames)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "subframe"
    }
  ],
  "senses": [
    {
      "categories": [
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        "en:Mechanical engineering"
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      "examples": [
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          "ref": "1951 March, “British Railways Standard \"Britannia\" Class 4-6-2 Locomotives”, in Railway Magazine, page 186:",
          "text": "The main frames are of 1¼-in. thick plates spaced 3 ft. 2½ in. apart, the centre lines coinciding with the centre of the axlebox guide faces.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The rigid frame upon which the moving parts of a machine are mounted; a chassis."
      ],
      "links": [
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          "mechanical engineering",
          "mechanical engineering"
        ],
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          "chassis",
          "chassis"
        ]
      ],
      "raw_glosses": [
        "(mechanical engineering) The rigid frame upon which the moving parts of a machine are mounted; a chassis."
      ],
      "topics": [
        "engineering",
        "mechanical",
        "mechanical-engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    },
    {
      "categories": [
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      ],
      "glosses": [
        "The widest structural frame located near the middle of a ship."
      ],
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        ],
        [
          "shipbuilding",
          "shipbuilding"
        ],
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        ],
        [
          "frame",
          "frame"
        ],
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          "middle",
          "middle"
        ],
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          "ship",
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        ]
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      "raw_glosses": [
        "(nautical, shipbuilding) The widest structural frame located near the middle of a ship."
      ],
      "topics": [
        "business",
        "manufacturing",
        "nautical",
        "shipbuilding",
        "transport"
      ]
    },
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          "word": "mainframe"
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      "glosses": [
        "Alternative form of mainframe."
      ],
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          "mainframe#English"
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  "word": "main frame"
}