"macroseism" meaning in English

{
  "etymology_templates": [
    {
      "args": {
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        "2": "macro",
        "3": "seism"
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      "expansion": "macro- + seism",
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    }
  ],
  "etymology_text": "From macro- + seism.",
  "forms": [
    {
      "form": "macroseisms",
      "tags": [
        "plural"
      ]
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      "expansion": "macroseism (plural macroseisms)",
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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"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with macro-",
          "parents": [],
          "source": "w"
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        {
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          "source": "w"
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          "name": "Terms with Italian translations",
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          "source": "w"
        }
      ],
      "glosses": [
        "A severe earthquake"
      ],
      "id": "en-macroseism-en-noun-8LpA1ayA",
      "links": [
        [
          "earthquake",
          "earthquake"
        ]
      ],
      "raw_glosses": [
        "(uncommon) A severe earthquake"
      ],
      "tags": [
        "uncommon"
      ],
      "translations": [
        {
          "code": "it",
          "lang": "Italian",
          "sense": "severe earthquake",
          "tags": [
            "masculine"
          ],
          "word": "macrosisma"
        }
      ]
    }
  ],
  "word": "macroseism"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "macro",
        "3": "seism"
      },
      "expansion": "macro- + seism",
      "name": "prefix"
    }
  ],
  "etymology_text": "From macro- + seism.",
  "forms": [
    {
      "form": "macroseisms",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "macroseism (plural macroseisms)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
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      ],
      "glosses": [
        "A severe earthquake"
      ],
      "links": [
        [
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          "earthquake"
        ]
      ],
      "raw_glosses": [
        "(uncommon) A severe earthquake"
      ],
      "tags": [
        "uncommon"
      ]
    }
  ],
  "translations": [
    {
      "code": "it",
      "lang": "Italian",
      "sense": "severe earthquake",
      "tags": [
        "masculine"
      ],
      "word": "macrosisma"
    }
  ],
  "word": "macroseism"
}