"feeder reservoir" meaning in English

{
  "forms": [
    {
      "form": "feeder reservoirs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "feeder reservoir (plural feeder reservoirs)",
      "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": "place",
          "langcode": "en",
          "name": "Bodies of water",
          "orig": "en:Bodies of water",
          "parents": [
            "Landforms",
            "Water",
            "Earth",
            "Places",
            "Liquids",
            "Nature",
            "Names",
            "Matter",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Chemistry",
            "Fundamental",
            "Nouns",
            "Sciences",
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A reservoir which stores water to maintain the level in a canal."
      ],
      "id": "en-feeder_reservoir-en-noun-qhhMxJAk",
      "links": [
        [
          "stores",
          "stores"
        ],
        [
          "water",
          "water"
        ],
        [
          "maintain",
          "maintain"
        ],
        [
          "level",
          "level"
        ],
        [
          "canal",
          "canal"
        ]
      ]
    }
  ],
  "word": "feeder reservoir"
}

{
  "forms": [
    {
      "form": "feeder reservoirs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "feeder reservoir (plural feeder reservoirs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Bodies of water"
      ],
      "glosses": [
        "A reservoir which stores water to maintain the level in a canal."
      ],
      "links": [
        [
          "stores",
          "stores"
        ],
        [
          "water",
          "water"
        ],
        [
          "maintain",
          "maintain"
        ],
        [
          "level",
          "level"
        ],
        [
          "canal",
          "canal"
        ]
      ]
    }
  ],
  "word": "feeder reservoir"
}