"siliceuses" meaning in Français

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes d’adjectifs en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "siliceux",
      "ipas": [
        "\\si.li.sø\\"
      ],
      "tags": [
        "masculine"
      ]
    },
    {
      "form": "siliceuse",
      "ipas": [
        "\\si.li.søz\\"
      ],
      "tags": [
        "singular",
        "feminine"
      ]
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "adj",
  "pos_title": "Forme d’adjectif",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en français",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Henri Gaussen, Géographie des Plantes, Armand Colin, 1933, page 14",
          "text": "Les landes siliceuses connaissent souvent une grande abondance de Fougères : au Pays basque la Fougère-aigle constitue d’importants pâturages qui rougeoient à l'automne."
        }
      ],
      "form_of": [
        {
          "word": "siliceux"
        }
      ],
      "glosses": [
        "Féminin pluriel de siliceux."
      ],
      "id": "fr-siliceuses-fr-adj-cZADsRng"
    }
  ],
  "sounds": [
    {
      "ipa": "\\si.li.søz\\"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "siliceuses"
}

{
  "categories": [
    "Formes d’adjectifs en français",
    "français"
  ],
  "forms": [
    {
      "form": "siliceux",
      "ipas": [
        "\\si.li.sø\\"
      ],
      "tags": [
        "masculine"
      ]
    },
    {
      "form": "siliceuse",
      "ipas": [
        "\\si.li.søz\\"
      ],
      "tags": [
        "singular",
        "feminine"
      ]
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "adj",
  "pos_title": "Forme d’adjectif",
  "senses": [
    {
      "categories": [
        "Exemples en français"
      ],
      "examples": [
        {
          "ref": "Henri Gaussen, Géographie des Plantes, Armand Colin, 1933, page 14",
          "text": "Les landes siliceuses connaissent souvent une grande abondance de Fougères : au Pays basque la Fougère-aigle constitue d’importants pâturages qui rougeoient à l'automne."
        }
      ],
      "form_of": [
        {
          "word": "siliceux"
        }
      ],
      "glosses": [
        "Féminin pluriel de siliceux."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\si.li.søz\\"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "siliceuses"
}