"megahabitat" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mega",
        "3": "habitat"
      },
      "expansion": "mega- + habitat",
      "name": "prefix"
    }
  ],
  "etymology_text": "From mega- + habitat.",
  "forms": [
    {
      "form": "megahabitats",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "megahabitat (plural megahabitats)",
      "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",
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          "source": "w"
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          "parents": [],
          "source": "w"
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          "source": "w"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Ecology",
          "orig": "en:Ecology",
          "parents": [
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A very large habitat, typically in the deep sea"
      ],
      "id": "en-megahabitat-en-noun--ZbcAnNp",
      "links": [
        [
          "ecology",
          "ecology"
        ],
        [
          "habitat",
          "habitat"
        ]
      ],
      "raw_glosses": [
        "(ecology) A very large habitat, typically in the deep sea"
      ],
      "topics": [
        "biology",
        "ecology",
        "natural-sciences"
      ]
    }
  ],
  "word": "megahabitat"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mega",
        "3": "habitat"
      },
      "expansion": "mega- + habitat",
      "name": "prefix"
    }
  ],
  "etymology_text": "From mega- + habitat.",
  "forms": [
    {
      "form": "megahabitats",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "megahabitat (plural megahabitats)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
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        "en:Ecology"
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      "glosses": [
        "A very large habitat, typically in the deep sea"
      ],
      "links": [
        [
          "ecology",
          "ecology"
        ],
        [
          "habitat",
          "habitat"
        ]
      ],
      "raw_glosses": [
        "(ecology) A very large habitat, typically in the deep sea"
      ],
      "topics": [
        "biology",
        "ecology",
        "natural-sciences"
      ]
    }
  ],
  "word": "megahabitat"
}