"breastrail" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "breast",
        "3": "rail"
      },
      "expansion": "breast + rail",
      "name": "compound"
    }
  ],
  "etymology_text": "From breast + rail.",
  "forms": [
    {
      "form": "breastrails",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "breastrail (plural breastrails)",
      "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"
        }
      ],
      "glosses": [
        "The upper rail of a parapet of ordinary height, such as of a balcony, the railing of a boat, etc."
      ],
      "id": "en-breastrail-en-noun-olw8THep",
      "links": [
        [
          "upper",
          "upper"
        ],
        [
          "rail",
          "rail"
        ],
        [
          "parapet",
          "parapet"
        ],
        [
          "balcony",
          "balcony"
        ],
        [
          "boat",
          "boat"
        ]
      ]
    }
  ],
  "word": "breastrail"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "breast",
        "3": "rail"
      },
      "expansion": "breast + rail",
      "name": "compound"
    }
  ],
  "etymology_text": "From breast + rail.",
  "forms": [
    {
      "form": "breastrails",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "breastrail (plural breastrails)",
      "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",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "The upper rail of a parapet of ordinary height, such as of a balcony, the railing of a boat, etc."
      ],
      "links": [
        [
          "upper",
          "upper"
        ],
        [
          "rail",
          "rail"
        ],
        [
          "parapet",
          "parapet"
        ],
        [
          "balcony",
          "balcony"
        ],
        [
          "boat",
          "boat"
        ]
      ]
    }
  ],
  "word": "breastrail"
}