"hippodromist" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "hippodrome",
        "3": "ist"
      },
      "expansion": "hippodrome + -ist",
      "name": "suffix"
    }
  ],
  "etymology_text": "From hippodrome + -ist.",
  "forms": [
    {
      "form": "hippodromists",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hippodromist (plural hippodromists)",
      "name": "en-noun"
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  "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"
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          "source": "w"
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          "kind": "other",
          "name": "English terms suffixed with -ist",
          "parents": [],
          "source": "w"
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          "source": "w"
        },
        {
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      ],
      "glosses": [
        "One who trains or rides horses as part of a circus."
      ],
      "id": "en-hippodromist-en-noun-1HJukN7I",
      "links": [
        [
          "train",
          "train"
        ],
        [
          "ride",
          "ride"
        ],
        [
          "horse",
          "horse"
        ],
        [
          "circus",
          "circus"
        ]
      ],
      "raw_glosses": [
        "(archaic) One who trains or rides horses as part of a circus."
      ],
      "tags": [
        "archaic"
      ]
    }
  ],
  "word": "hippodromist"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "hippodrome",
        "3": "ist"
      },
      "expansion": "hippodrome + -ist",
      "name": "suffix"
    }
  ],
  "etymology_text": "From hippodrome + -ist.",
  "forms": [
    {
      "form": "hippodromists",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hippodromist (plural hippodromists)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms suffixed with -ist",
        "English terms with archaic senses",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "One who trains or rides horses as part of a circus."
      ],
      "links": [
        [
          "train",
          "train"
        ],
        [
          "ride",
          "ride"
        ],
        [
          "horse",
          "horse"
        ],
        [
          "circus",
          "circus"
        ]
      ],
      "raw_glosses": [
        "(archaic) One who trains or rides horses as part of a circus."
      ],
      "tags": [
        "archaic"
      ]
    }
  ],
  "word": "hippodromist"
}