"lancer du marteau" meaning in French

{
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "-"
      },
      "expansion": "lancer du marteau m (uncountable)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Athletics",
          "orig": "fr:Athletics",
          "parents": [
            "Sports",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "hammer throw (athletic throwing event where the object to be thrown is a heavy steel ball attached with wire to a handle)"
      ],
      "id": "en-lancer_du_marteau-fr-noun-LD5HZ~K0",
      "links": [
        [
          "athletics",
          "athletics"
        ],
        [
          "hammer throw",
          "hammer throw"
        ]
      ],
      "raw_glosses": [
        "(athletics) hammer throw (athletic throwing event where the object to be thrown is a heavy steel ball attached with wire to a handle)"
      ],
      "tags": [
        "masculine",
        "uncountable"
      ],
      "topics": [
        "athletics",
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/lɑ̃.se dy maʁ.to/"
    }
  ],
  "word": "lancer du marteau"
}

{
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "-"
      },
      "expansion": "lancer du marteau m (uncountable)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "French entries with incorrect language header",
        "French lemmas",
        "French masculine nouns",
        "French multiword terms",
        "French nouns",
        "French terms with IPA pronunciation",
        "French uncountable nouns",
        "fr:Athletics"
      ],
      "glosses": [
        "hammer throw (athletic throwing event where the object to be thrown is a heavy steel ball attached with wire to a handle)"
      ],
      "links": [
        [
          "athletics",
          "athletics"
        ],
        [
          "hammer throw",
          "hammer throw"
        ]
      ],
      "raw_glosses": [
        "(athletics) hammer throw (athletic throwing event where the object to be thrown is a heavy steel ball attached with wire to a handle)"
      ],
      "tags": [
        "masculine",
        "uncountable"
      ],
      "topics": [
        "athletics",
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/lɑ̃.se dy maʁ.to/"
    }
  ],
  "word": "lancer du marteau"
}