"headrace" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "head",
        "3": "race"
      },
      "expansion": "head + race",
      "name": "compound"
    }
  ],
  "etymology_text": "head + race",
  "forms": [
    {
      "form": "headraces",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "headrace (plural headraces)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "81 19",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "The part of a millrace that brings water to the millwheel."
      ],
      "id": "en-headrace-en-noun-Gp5BGdU-",
      "links": [
        [
          "millrace",
          "millrace"
        ],
        [
          "water",
          "water"
        ],
        [
          "millwheel",
          "millwheel"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "22 78",
          "kind": "topical",
          "langcode": "en",
          "name": "Rowing",
          "orig": "en:Rowing",
          "parents": [
            "Water sports",
            "Sports",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A time trial in the sport of rowing."
      ],
      "id": "en-headrace-en-noun-c0Tc6Lpm",
      "links": [
        [
          "time trial",
          "time trial"
        ],
        [
          "rowing",
          "rowing"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0",
      "word": "head-race"
    }
  ],
  "word": "headrace"
}

{
  "categories": [
    "English compound terms",
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "en:Rowing"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "head",
        "3": "race"
      },
      "expansion": "head + race",
      "name": "compound"
    }
  ],
  "etymology_text": "head + race",
  "forms": [
    {
      "form": "headraces",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "headrace (plural headraces)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "The part of a millrace that brings water to the millwheel."
      ],
      "links": [
        [
          "millrace",
          "millrace"
        ],
        [
          "water",
          "water"
        ],
        [
          "millwheel",
          "millwheel"
        ]
      ]
    },
    {
      "glosses": [
        "A time trial in the sport of rowing."
      ],
      "links": [
        [
          "time trial",
          "time trial"
        ],
        [
          "rowing",
          "rowing"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "head-race"
    }
  ],
  "word": "headrace"
}