"belemnite battlefield" meaning in English

{
  "etymology_text": "After the visual similarity of belemnite fossils to bullet shells.",
  "forms": [
    {
      "form": "belemnite battlefields",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "belemnite battlefield (plural belemnite battlefields)",
      "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": "Paleontology",
          "orig": "en:Paleontology",
          "parents": [
            "Geology",
            "Sciences",
            "Earth sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A fossil site with an unusually high concentration of belemnite rostra."
      ],
      "id": "en-belemnite_battlefield-en-noun-9E8M7eGL",
      "links": [
        [
          "paleontology",
          "paleontology"
        ],
        [
          "fossil",
          "fossil"
        ],
        [
          "belemnite",
          "belemnite"
        ],
        [
          "rostra",
          "rostrum"
        ]
      ],
      "raw_glosses": [
        "(idiomatic, informal, paleontology) A fossil site with an unusually high concentration of belemnite rostra."
      ],
      "tags": [
        "idiomatic",
        "informal"
      ],
      "topics": [
        "biology",
        "history",
        "human-sciences",
        "natural-sciences",
        "paleontology",
        "sciences"
      ]
    }
  ],
  "word": "belemnite battlefield"
}

{
  "etymology_text": "After the visual similarity of belemnite fossils to bullet shells.",
  "forms": [
    {
      "form": "belemnite battlefields",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "belemnite battlefield (plural belemnite battlefields)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English idioms",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Paleontology"
      ],
      "glosses": [
        "A fossil site with an unusually high concentration of belemnite rostra."
      ],
      "links": [
        [
          "paleontology",
          "paleontology"
        ],
        [
          "fossil",
          "fossil"
        ],
        [
          "belemnite",
          "belemnite"
        ],
        [
          "rostra",
          "rostrum"
        ]
      ],
      "raw_glosses": [
        "(idiomatic, informal, paleontology) A fossil site with an unusually high concentration of belemnite rostra."
      ],
      "tags": [
        "idiomatic",
        "informal"
      ],
      "topics": [
        "biology",
        "history",
        "human-sciences",
        "natural-sciences",
        "paleontology",
        "sciences"
      ]
    }
  ],
  "word": "belemnite battlefield"
}