"white-letter hairstreak" meaning in English

{
  "forms": [
    {
      "form": "white-letter hairstreaks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "white-letter hairstreak (plural white-letter hairstreaks)",
      "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"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
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          "source": "w"
        },
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          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
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            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Gossamer-winged butterflies",
          "orig": "en:Gossamer-winged butterflies",
          "parents": [
            "Butterflies",
            "Insects",
            "Arthropods",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A small, brown butterfly with a W-shaped white streak, Satyrium w-album, of the family Lycaenidae."
      ],
      "id": "en-white-letter_hairstreak-en-noun-1KM-aDNn",
      "links": [
        [
          "butterfly",
          "butterfly"
        ],
        [
          "Lycaenidae",
          "Lycaenidae#Translingual"
        ]
      ],
      "translations": [
        {
          "code": "gd",
          "lang": "Scottish Gaelic",
          "sense": "butterfly",
          "tags": [
            "masculine"
          ],
          "word": "ròin-stiallach geal"
        }
      ],
      "wikipedia": [
        "white-letter hairstreak"
      ]
    }
  ],
  "word": "white-letter hairstreak"
}

{
  "forms": [
    {
      "form": "white-letter hairstreaks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "white-letter hairstreak (plural white-letter hairstreaks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "Entries using missing taxonomic name (species)",
        "en:Gossamer-winged butterflies"
      ],
      "glosses": [
        "A small, brown butterfly with a W-shaped white streak, Satyrium w-album, of the family Lycaenidae."
      ],
      "links": [
        [
          "butterfly",
          "butterfly"
        ],
        [
          "Lycaenidae",
          "Lycaenidae#Translingual"
        ]
      ],
      "wikipedia": [
        "white-letter hairstreak"
      ]
    }
  ],
  "translations": [
    {
      "code": "gd",
      "lang": "Scottish Gaelic",
      "sense": "butterfly",
      "tags": [
        "masculine"
      ],
      "word": "ròin-stiallach geal"
    }
  ],
  "word": "white-letter hairstreak"
}