"winter triathlon" meaning in English

{
  "forms": [
    {
      "form": "winter triathlons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "winter triathlon (plural winter triathlons)",
      "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"
        }
      ],
      "glosses": [
        "A three-stage race involving snowshoeing, ice skating, cross-country skiing"
      ],
      "id": "en-winter_triathlon-en-noun-5Vktd0r~",
      "links": [
        [
          "snowshoeing",
          "snowshoeing"
        ],
        [
          "ice skating",
          "ice skating"
        ],
        [
          "cross-country skiing",
          "cross-country skiing"
        ]
      ],
      "related": [
        {
          "word": "winter"
        },
        {
          "english": "a three-sport three-leg race involving swimming, bicycling, running.",
          "word": "triathlon"
        },
        {
          "word": "snow pentathlon"
        }
      ],
      "translations": [
        {
          "code": "fr",
          "lang": "French",
          "sense": "snowshoeing & skating & X-skiing",
          "tags": [
            "masculine"
          ],
          "word": "triathlon d’hiver"
        }
      ]
    }
  ],
  "word": "winter triathlon"
}

{
  "forms": [
    {
      "form": "winter triathlons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "winter triathlon (plural winter triathlons)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "winter"
    },
    {
      "english": "a three-sport three-leg race involving swimming, bicycling, running.",
      "word": "triathlon"
    },
    {
      "word": "snow pentathlon"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns"
      ],
      "glosses": [
        "A three-stage race involving snowshoeing, ice skating, cross-country skiing"
      ],
      "links": [
        [
          "snowshoeing",
          "snowshoeing"
        ],
        [
          "ice skating",
          "ice skating"
        ],
        [
          "cross-country skiing",
          "cross-country skiing"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "fr",
      "lang": "French",
      "sense": "snowshoeing & skating & X-skiing",
      "tags": [
        "masculine"
      ],
      "word": "triathlon d’hiver"
    }
  ],
  "word": "winter triathlon"
}