"ulvacées" meaning in Français

{
  "categories": [
    {
      "kind": "other",
      "name": "Dérivations en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Lemmes en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en français suffixés avec -acé",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Traductions en conventions internationales",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Dérivé de ulve, avec le suffixe -acé."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en français de la botanique",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en français",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Famille de plantes cryptogames."
      ],
      "id": "fr-ulvacées-fr-noun-8Csv3f1y",
      "topics": [
        "botany"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\yl.va.se\\"
    }
  ],
  "tags": [
    "feminine",
    "plural"
  ],
  "word": "ulvacées"
}

{
  "categories": [
    "Dérivations en français",
    "Lemmes en français",
    "Mots en français suffixés avec -acé",
    "Noms communs en français",
    "Traductions en conventions internationales",
    "français"
  ],
  "etymology_texts": [
    "Dérivé de ulve, avec le suffixe -acé."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Lexique en français de la botanique",
        "Wiktionnaire:Exemples manquants en français"
      ],
      "glosses": [
        "Famille de plantes cryptogames."
      ],
      "topics": [
        "botany"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\yl.va.se\\"
    }
  ],
  "tags": [
    "feminine",
    "plural"
  ],
  "word": "ulvacées"
}