"water battery" meaning in English

{
  "forms": [
    {
      "form": "water batteries",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "water battery (plural water batteries)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A voltaic battery in which the electrolyte is water."
      ],
      "id": "en-water_battery-en-noun-r0~Obfaj",
      "links": [
        [
          "voltaic battery",
          "voltaic battery"
        ],
        [
          "electrolyte",
          "electrolyte"
        ]
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Military",
          "orig": "en:Military",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "9 91",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A battery nearly on a level with the water."
      ],
      "id": "en-water_battery-en-noun-jdSsz7Yk",
      "links": [
        [
          "military",
          "military"
        ]
      ],
      "raw_glosses": [
        "(military) A battery nearly on a level with the water."
      ],
      "topics": [
        "government",
        "military",
        "politics",
        "war"
      ]
    }
  ],
  "word": "water battery"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns"
  ],
  "forms": [
    {
      "form": "water batteries",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "water battery (plural water batteries)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A voltaic battery in which the electrolyte is water."
      ],
      "links": [
        [
          "voltaic battery",
          "voltaic battery"
        ],
        [
          "electrolyte",
          "electrolyte"
        ]
      ]
    },
    {
      "categories": [
        "en:Military"
      ],
      "glosses": [
        "A battery nearly on a level with the water."
      ],
      "links": [
        [
          "military",
          "military"
        ]
      ],
      "raw_glosses": [
        "(military) A battery nearly on a level with the water."
      ],
      "topics": [
        "government",
        "military",
        "politics",
        "war"
      ]
    }
  ],
  "word": "water battery"
}