"alfalfa butterfly" meaning in English

{
  "forms": [
    {
      "form": "alfalfa butterflies",
      "tags": [
        "plural"
      ]
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  "head_templates": [
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      "args": {},
      "expansion": "alfalfa butterfly (plural alfalfa butterflies)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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          "kind": "other",
          "name": "English entries with incorrect language header",
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        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Pierid butterflies",
          "orig": "en:Pierid butterflies",
          "parents": [
            "Butterflies",
            "Insects",
            "Arthropods",
            "Animals",
            "Lifeforms",
            "All topics",
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            "Fundamental",
            "Nature"
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          "source": "w"
        }
      ],
      "glosses": [
        "A North American pierid butterfly, Colias eurytheme, the caterpillars of which feed on various plants in the pea family, Fabaceae, including alfalfa."
      ],
      "id": "en-alfalfa_butterfly-en-noun-P88ZN4fL",
      "links": [
        [
          "pierid",
          "pierid"
        ],
        [
          "caterpillars",
          "caterpillars"
        ],
        [
          "family",
          "family"
        ],
        [
          "Fabaceae",
          "Fabaceae#Translingual"
        ],
        [
          "alfalfa",
          "alfalfa"
        ]
      ]
    }
  ],
  "word": "alfalfa butterfly"
}

{
  "forms": [
    {
      "form": "alfalfa butterflies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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  "lang_code": "en",
  "pos": "noun",
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        "en:Pierid butterflies"
      ],
      "glosses": [
        "A North American pierid butterfly, Colias eurytheme, the caterpillars of which feed on various plants in the pea family, Fabaceae, including alfalfa."
      ],
      "links": [
        [
          "pierid",
          "pierid"
        ],
        [
          "caterpillars",
          "caterpillars"
        ],
        [
          "family",
          "family"
        ],
        [
          "Fabaceae",
          "Fabaceae#Translingual"
        ],
        [
          "alfalfa",
          "alfalfa"
        ]
      ]
    }
  ],
  "word": "alfalfa butterfly"
}