"cornillon" meaning in French

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "corneille",
        "3": "-on"
      },
      "expansion": "corneille + -on",
      "name": "af"
    }
  ],
  "etymology_text": "From corneille + -on.",
  "forms": [
    {
      "form": "cornillons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "cornillon m (plural cornillons)",
      "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": "other",
          "name": "French terms suffixed with -on",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "a young crow"
      ],
      "id": "en-cornillon-fr-noun-zerLQqR7",
      "links": [
        [
          "crow",
          "crow"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kɔʁ.ni.jɔ̃/"
    }
  ],
  "word": "cornillon"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "corneille",
        "3": "-on"
      },
      "expansion": "corneille + -on",
      "name": "af"
    }
  ],
  "etymology_text": "From corneille + -on.",
  "forms": [
    {
      "form": "cornillons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "cornillon m (plural cornillons)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "French 3-syllable words",
        "French countable nouns",
        "French entries with incorrect language header",
        "French lemmas",
        "French masculine nouns",
        "French nouns",
        "French terms suffixed with -on",
        "French terms with IPA pronunciation",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "a young crow"
      ],
      "links": [
        [
          "crow",
          "crow"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kɔʁ.ni.jɔ̃/"
    }
  ],
  "word": "cornillon"
}