"drumline" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "drum",
        "3": "line"
      },
      "expansion": "drum + line",
      "name": "compound"
    }
  ],
  "etymology_text": "drum + line",
  "forms": [
    {
      "form": "drumlines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "drumline (plural drumlines)",
      "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"
        }
      ],
      "glosses": [
        "A group of percussionists in a marching band, consisting of the battery and front ensemble."
      ],
      "id": "en-drumline-en-noun-JCp69bWu",
      "links": [
        [
          "percussionist",
          "percussionist"
        ],
        [
          "marching band",
          "marching band"
        ],
        [
          "battery",
          "battery"
        ]
      ],
      "synonyms": [
        {
          "word": "drum line"
        }
      ],
      "wikipedia": [
        "drumline"
      ]
    }
  ],
  "word": "drumline"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "drum",
        "3": "line"
      },
      "expansion": "drum + line",
      "name": "compound"
    }
  ],
  "etymology_text": "drum + line",
  "forms": [
    {
      "form": "drumlines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "drumline (plural drumlines)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns"
      ],
      "glosses": [
        "A group of percussionists in a marching band, consisting of the battery and front ensemble."
      ],
      "links": [
        [
          "percussionist",
          "percussionist"
        ],
        [
          "marching band",
          "marching band"
        ],
        [
          "battery",
          "battery"
        ]
      ],
      "wikipedia": [
        "drumline"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "drum line"
    }
  ],
  "word": "drumline"
}