"megablock" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mega",
        "3": "block"
      },
      "expansion": "mega- + block",
      "name": "prefix"
    }
  ],
  "etymology_text": "mega- + block",
  "forms": [
    {
      "form": "megablocks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "megablock (plural megablocks)",
      "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"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with mega-",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1983, Nicholas Rast, Profiles of Orogenic Belts, page 169",
          "text": "The earliest potassic granites in the southern part of the Timpton-Sutam megablock appear only at the end of the fourth cycle.",
          "type": "quotation"
        },
        {
          "ref": "2012, Wylie Poag, The Chesapeake Bay Crater",
          "text": "On the single and two-channel profiles, however, ringing interference (repetition of shallower reflections) between the basement and postimpact sediments prevents clear definition of the displaced megablocks.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A very large block."
      ],
      "id": "en-megablock-en-noun-tocNODRs",
      "links": [
        [
          "block",
          "block"
        ]
      ],
      "related": [
        {
          "word": "superblock"
        }
      ]
    }
  ],
  "word": "megablock"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mega",
        "3": "block"
      },
      "expansion": "mega- + block",
      "name": "prefix"
    }
  ],
  "etymology_text": "mega- + block",
  "forms": [
    {
      "form": "megablocks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "megablock (plural megablocks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "superblock"
    }
  ],
  "senses": [
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        "English entries with incorrect language header",
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        "English nouns",
        "English terms prefixed with mega-",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1983, Nicholas Rast, Profiles of Orogenic Belts, page 169",
          "text": "The earliest potassic granites in the southern part of the Timpton-Sutam megablock appear only at the end of the fourth cycle.",
          "type": "quotation"
        },
        {
          "ref": "2012, Wylie Poag, The Chesapeake Bay Crater",
          "text": "On the single and two-channel profiles, however, ringing interference (repetition of shallower reflections) between the basement and postimpact sediments prevents clear definition of the displaced megablocks.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A very large block."
      ],
      "links": [
        [
          "block",
          "block"
        ]
      ]
    }
  ],
  "word": "megablock"
}