"BLS1" meaning in English

{
  "antonyms": [
    {
      "word": "NLS1"
    }
  ],
  "forms": [
    {
      "form": "BLS1s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "BLS1 (plural BLS1s)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Galaxies",
          "orig": "en:Galaxies",
          "parents": [
            "Celestial bodies",
            "Space",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "broad emission-line Seyfert type-1 galaxy"
      ],
      "id": "en-BLS1-en-noun-HohJqrJY",
      "links": [
        [
          "astronomy",
          "astronomy"
        ]
      ],
      "raw_glosses": [
        "(astronomy) broad emission-line Seyfert type-1 galaxy"
      ],
      "related": [
        {
          "word": "BLQ"
        },
        {
          "word": "ELG"
        },
        {
          "word": "BLRG"
        },
        {
          "word": "NLS1"
        },
        {
          "word": "LINER"
        }
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ]
    }
  ],
  "word": "BLS1"
}

{
  "antonyms": [
    {
      "word": "NLS1"
    }
  ],
  "forms": [
    {
      "form": "BLS1s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "BLS1 (plural BLS1s)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "BLQ"
    },
    {
      "word": "ELG"
    },
    {
      "word": "BLRG"
    },
    {
      "word": "NLS1"
    },
    {
      "word": "LINER"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms spelled with numbers",
        "English words without vowels",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Galaxies"
      ],
      "glosses": [
        "broad emission-line Seyfert type-1 galaxy"
      ],
      "links": [
        [
          "astronomy",
          "astronomy"
        ]
      ],
      "raw_glosses": [
        "(astronomy) broad emission-line Seyfert type-1 galaxy"
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ]
    }
  ],
  "word": "BLS1"
}