"lutraires" meaning in Français

{
  "anagrams": [
    {
      "word": "altruiser"
    },
    {
      "word": "lustrerai"
    },
    {
      "word": "relustrai"
    },
    {
      "word": "ruralités"
    },
    {
      "word": "rutileras"
    },
    {
      "word": "traileurs"
    }
  ],
  "categories": [
    {
      "kind": "other",
      "name": "Formes de noms communs en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "lutraire",
      "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": [
        {
          "ref": "Georges Fleury, La Pêche à pied - Ses secrets et sa cuisine, 1997",
          "text": "Alors que les fias se pêchent dans des zones de sable propre, les lutraires vivent dans des sables plus grossiers, voire dans la vase."
        }
      ],
      "form_of": [
        {
          "word": "lutraire"
        }
      ],
      "glosses": [
        "Pluriel de lutraire."
      ],
      "id": "fr-lutraires-fr-noun-3vEBDVKM"
    }
  ],
  "sounds": [
    {
      "ipa": "\\ly.tʁɛʁ\\"
    }
  ],
  "tags": [
    "feminine",
    "form-of"
  ],
  "word": "lutraires"
}

{
  "anagrams": [
    {
      "word": "altruiser"
    },
    {
      "word": "lustrerai"
    },
    {
      "word": "relustrai"
    },
    {
      "word": "ruralités"
    },
    {
      "word": "rutileras"
    },
    {
      "word": "traileurs"
    }
  ],
  "categories": [
    "Formes de noms communs en français",
    "français"
  ],
  "forms": [
    {
      "form": "lutraire",
      "tags": [
        "singular"
      ]
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "categories": [
        "Exemples en français"
      ],
      "examples": [
        {
          "ref": "Georges Fleury, La Pêche à pied - Ses secrets et sa cuisine, 1997",
          "text": "Alors que les fias se pêchent dans des zones de sable propre, les lutraires vivent dans des sables plus grossiers, voire dans la vase."
        }
      ],
      "form_of": [
        {
          "word": "lutraire"
        }
      ],
      "glosses": [
        "Pluriel de lutraire."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ly.tʁɛʁ\\"
    }
  ],
  "tags": [
    "feminine",
    "form-of"
  ],
  "word": "lutraires"
}