"boojum" meaning in English

{
  "etymology_text": "Nonsense word from The Hunting of the Snark by Lewis Carroll.",
  "forms": [
    {
      "form": "boojums",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "boojum (plural boojums)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "66 34",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "53 47",
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "55 45",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A geometric pattern sometimes observed on the surface of superfluid helium-3."
      ],
      "id": "en-boojum-en-noun-pZ8TDgQw",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "geometric",
          "geometric"
        ],
        [
          "pattern",
          "pattern"
        ],
        [
          "superfluid",
          "superfluid"
        ],
        [
          "helium-3",
          "helium-3"
        ]
      ],
      "raw_glosses": [
        "(physics) A geometric pattern sometimes observed on the surface of superfluid helium-3."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    },
    {
      "categories": [
        {
          "_dis": "53 47",
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "55 45",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "35 65",
          "kind": "lifeform",
          "langcode": "en",
          "name": "Ericales order plants",
          "orig": "en:Ericales order plants",
          "parents": [
            "Plants",
            "Shrubs",
            "Trees",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A species of tree (Fouquieria columnaris) native to Baja California, Mexico."
      ],
      "id": "en-boojum-en-noun-M9XavQGF",
      "links": [
        [
          "tree",
          "tree"
        ],
        [
          "Baja California",
          "Baja California"
        ],
        [
          "Mexico",
          "Mexico"
        ]
      ],
      "raw_glosses": [
        "(countable) A species of tree (Fouquieria columnaris) native to Baja California, Mexico."
      ],
      "tags": [
        "countable"
      ]
    }
  ],
  "wikipedia": [
    "Fouquieria columnaris",
    "Lewis Carroll",
    "The Hunting of the Snark",
    "boojum"
  ],
  "word": "boojum"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "Pages with 2 entries",
    "Pages with entries",
    "en:Ericales order plants"
  ],
  "etymology_text": "Nonsense word from The Hunting of the Snark by Lewis Carroll.",
  "forms": [
    {
      "form": "boojums",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "boojum (plural boojums)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "en:Physics"
      ],
      "glosses": [
        "A geometric pattern sometimes observed on the surface of superfluid helium-3."
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "geometric",
          "geometric"
        ],
        [
          "pattern",
          "pattern"
        ],
        [
          "superfluid",
          "superfluid"
        ],
        [
          "helium-3",
          "helium-3"
        ]
      ],
      "raw_glosses": [
        "(physics) A geometric pattern sometimes observed on the surface of superfluid helium-3."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    },
    {
      "categories": [
        "English countable nouns",
        "Entries using missing taxonomic name (species)"
      ],
      "glosses": [
        "A species of tree (Fouquieria columnaris) native to Baja California, Mexico."
      ],
      "links": [
        [
          "tree",
          "tree"
        ],
        [
          "Baja California",
          "Baja California"
        ],
        [
          "Mexico",
          "Mexico"
        ]
      ],
      "raw_glosses": [
        "(countable) A species of tree (Fouquieria columnaris) native to Baja California, Mexico."
      ],
      "tags": [
        "countable"
      ]
    }
  ],
  "wikipedia": [
    "Fouquieria columnaris",
    "Lewis Carroll",
    "The Hunting of the Snark",
    "boojum"
  ],
  "word": "boojum"
}