"heavy icebreaker" meaning in English

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    {
      "form": "heavy icebreakers",
      "tags": [
        "plural"
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  "head_templates": [
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      "expansion": "heavy icebreaker (plural heavy icebreakers)",
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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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      ],
      "coordinate_terms": [
        {
          "word": "icebreaker"
        },
        {
          "word": "light icebreaker"
        },
        {
          "word": "medium icebreaker"
        },
        {
          "word": "slushbreaker"
        }
      ],
      "glosses": [
        "An icebreaking ship capable of all-year, overwinter operations in polar regions, through multi-year ice."
      ],
      "id": "en-heavy_icebreaker-en-noun-q1~OaZBU"
    }
  ],
  "word": "heavy icebreaker"
}

{
  "coordinate_terms": [
    {
      "word": "icebreaker"
    },
    {
      "word": "light icebreaker"
    },
    {
      "word": "medium icebreaker"
    },
    {
      "word": "slushbreaker"
    }
  ],
  "forms": [
    {
      "form": "heavy icebreakers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "heavy icebreaker (plural heavy icebreakers)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns"
      ],
      "glosses": [
        "An icebreaking ship capable of all-year, overwinter operations in polar regions, through multi-year ice."
      ]
    }
  ],
  "word": "heavy icebreaker"
}