"Imperial stout" meaning in English

{
  "forms": [
    {
      "form": "Imperial stouts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "Imperial stout (countable and uncountable, plural Imperial stouts)",
      "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"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A strong, dark beer of a style originally brewed in the 18th century in London for export to the imperial court of Catherine II of Russia."
      ],
      "id": "en-Imperial_stout-en-noun-pyYvVO1r",
      "links": [
        [
          "strong",
          "strong"
        ],
        [
          "dark",
          "dark"
        ],
        [
          "beer",
          "beer"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "Imperial stout"
}

{
  "forms": [
    {
      "form": "Imperial stouts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "Imperial stout (countable and uncountable, plural Imperial stouts)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English uncountable nouns"
      ],
      "glosses": [
        "A strong, dark beer of a style originally brewed in the 18th century in London for export to the imperial court of Catherine II of Russia."
      ],
      "links": [
        [
          "strong",
          "strong"
        ],
        [
          "dark",
          "dark"
        ],
        [
          "beer",
          "beer"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "Imperial stout"
}