"фтор" meaning in Tchouvache

{
  "categories": [
    {
      "kind": "other",
      "name": "Mots en tchouvache issus d’un mot en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en tchouvache",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Tchouvache",
      "orig": "tchouvache",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Éléments chimiques en tchouvache",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Du grec ancien φθόρος, phthóros (« destruction, dommage, préjudice »), du verbe φθείρω, phtheírô (« détruire »)."
  ],
  "lang": "Tchouvache",
  "lang_code": "cv",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Fluor."
      ],
      "id": "fr-фтор-cv-noun-R~K649Wo",
      "topics": [
        "chemistry"
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "фтор"
}

{
  "categories": [
    "Mots en tchouvache issus d’un mot en grec ancien",
    "Noms communs en tchouvache",
    "tchouvache",
    "Éléments chimiques en tchouvache"
  ],
  "etymology_texts": [
    "Du grec ancien φθόρος, phthóros (« destruction, dommage, préjudice »), du verbe φθείρω, phtheírô (« détruire »)."
  ],
  "lang": "Tchouvache",
  "lang_code": "cv",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Fluor."
      ],
      "topics": [
        "chemistry"
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "фтор"
}