"water year" meaning in English

{
  "forms": [
    {
      "form": "water years",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "water year (plural water years)",
      "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": "topical",
          "langcode": "en",
          "name": "Hydrology",
          "orig": "en:Hydrology",
          "parents": [
            "Earth sciences",
            "Water",
            "Sciences",
            "Liquids",
            "All topics",
            "Matter",
            "Fundamental",
            "Chemistry",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The timespan between October 1 and September 30 of the next year, differing from the calendar year because part of the precipitation that falls in late autumn and winter accumulates as snow and does not drain until the following spring or summer."
      ],
      "id": "en-water_year-en-noun-4xzAYiyu",
      "links": [
        [
          "hydrology",
          "hydrology"
        ],
        [
          "timespan",
          "timespan"
        ],
        [
          "precipitation",
          "precipitation"
        ],
        [
          "autumn",
          "autumn"
        ],
        [
          "winter",
          "winter"
        ],
        [
          "snow",
          "snow"
        ],
        [
          "spring",
          "spring"
        ],
        [
          "summer",
          "summer"
        ]
      ],
      "raw_glosses": [
        "(hydrology) The timespan between October 1 and September 30 of the next year, differing from the calendar year because part of the precipitation that falls in late autumn and winter accumulates as snow and does not drain until the following spring or summer."
      ],
      "topics": [
        "geography",
        "hydrology",
        "natural-sciences"
      ],
      "wikipedia": [
        "water year"
      ]
    }
  ],
  "word": "water year"
}

{
  "forms": [
    {
      "form": "water years",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "water year (plural water years)",
      "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",
        "en:Hydrology"
      ],
      "glosses": [
        "The timespan between October 1 and September 30 of the next year, differing from the calendar year because part of the precipitation that falls in late autumn and winter accumulates as snow and does not drain until the following spring or summer."
      ],
      "links": [
        [
          "hydrology",
          "hydrology"
        ],
        [
          "timespan",
          "timespan"
        ],
        [
          "precipitation",
          "precipitation"
        ],
        [
          "autumn",
          "autumn"
        ],
        [
          "winter",
          "winter"
        ],
        [
          "snow",
          "snow"
        ],
        [
          "spring",
          "spring"
        ],
        [
          "summer",
          "summer"
        ]
      ],
      "raw_glosses": [
        "(hydrology) The timespan between October 1 and September 30 of the next year, differing from the calendar year because part of the precipitation that falls in late autumn and winter accumulates as snow and does not drain until the following spring or summer."
      ],
      "topics": [
        "geography",
        "hydrology",
        "natural-sciences"
      ],
      "wikipedia": [
        "water year"
      ]
    }
  ],
  "word": "water year"
}