"hercynites" meaning in Français

{
  "anagrams": [
    {
      "word": "synechtrie"
    }
  ],
  "categories": [
    {
      "kind": "other",
      "name": "Formes de noms communs en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "hercynite",
      "tags": [
        "singular"
      ]
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en français",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              23,
              33
            ]
          ],
          "ref": "Université Louis Pasteur de Strasbourg, Institut de Géologie: Sciences géologiques: Bulletin, 1987",
          "text": "Les spinelles sont des hercynites chromifères d’après la classification de DEER et al. (1963), avec des indices Al/Cr compris entre 2 et 3."
        }
      ],
      "form_of": [
        {
          "word": "hercynite"
        }
      ],
      "glosses": [
        "Pluriel de hercynite."
      ],
      "id": "fr-hercynites-fr-noun-yICdn9N~"
    }
  ],
  "sounds": [
    {
      "ipa": "\\ɛʁ.si.nit\\"
    }
  ],
  "tags": [
    "feminine",
    "form-of"
  ],
  "word": "hercynites"
}

{
  "anagrams": [
    {
      "word": "synechtrie"
    }
  ],
  "categories": [
    "Formes de noms communs en français",
    "français"
  ],
  "forms": [
    {
      "form": "hercynite",
      "tags": [
        "singular"
      ]
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "categories": [
        "Exemples en français"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              23,
              33
            ]
          ],
          "ref": "Université Louis Pasteur de Strasbourg, Institut de Géologie: Sciences géologiques: Bulletin, 1987",
          "text": "Les spinelles sont des hercynites chromifères d’après la classification de DEER et al. (1963), avec des indices Al/Cr compris entre 2 et 3."
        }
      ],
      "form_of": [
        {
          "word": "hercynite"
        }
      ],
      "glosses": [
        "Pluriel de hercynite."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ɛʁ.si.nit\\"
    }
  ],
  "tags": [
    "feminine",
    "form-of"
  ],
  "word": "hercynites"
}