"acorn cup" meaning in English

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        "2": "acorn",
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      "expansion": "acorn + cup",
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  "etymology_text": "From acorn + cup.",
  "forms": [
    {
      "form": "acorn cups",
      "tags": [
        "plural"
      ]
    }
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      "expansion": "acorn cup (plural acorn cups)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "name": "Plant anatomy",
          "orig": "en:Plant anatomy",
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      ],
      "glosses": [
        "The involucre or cup in which the acorn is fixed."
      ],
      "id": "en-acorn_cup-en-noun-Rukrh01V",
      "links": [
        [
          "involucre",
          "involucre"
        ],
        [
          "acorn",
          "acorn"
        ]
      ],
      "synonyms": [
        {
          "word": "acorn cupule"
        }
      ],
      "translations": [
        {
          "code": "kw",
          "lang": "Cornish",
          "sense": "Involucre in which acorn is fixed",
          "tags": [
            "feminine"
          ],
          "word": "byskon mes"
        }
      ]
    }
  ],
  "word": "acorn cup"
}

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    {
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        "2": "acorn",
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      "expansion": "acorn + cup",
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  ],
  "etymology_text": "From acorn + cup.",
  "forms": [
    {
      "form": "acorn cups",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "expansion": "acorn cup (plural acorn cups)",
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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "The involucre or cup in which the acorn is fixed."
      ],
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        [
          "involucre",
          "involucre"
        ],
        [
          "acorn",
          "acorn"
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  "synonyms": [
    {
      "word": "acorn cupule"
    }
  ],
  "translations": [
    {
      "code": "kw",
      "lang": "Cornish",
      "sense": "Involucre in which acorn is fixed",
      "tags": [
        "feminine"
      ],
      "word": "byskon mes"
    }
  ],
  "word": "acorn cup"
}