"hydrogène de récupération" meaning in Français

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions nominales en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots au singulier uniquement en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Traductions en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Locutioncomposée de hydrogène et de récupération"
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en français de la chimie",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Lexique en français de l’industrie de l’énergie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Hydrogène sous-produit."
      ],
      "id": "fr-hydrogène_de_récupération-fr-noun-TXBWWK3F",
      "raw_tags": [
        "Industrie de l’énergie"
      ],
      "topics": [
        "chemistry"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\i.dʁɔ.ʒɛn də ʁe.ky.pe.ʁa.sjɔ̃\\"
    }
  ],
  "synonyms": [
    {
      "word": "hydrogène coproduit"
    },
    {
      "word": "hydrogène fatal"
    }
  ],
  "tags": [
    "masculine",
    "singular-only"
  ],
  "translations": [
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "by-product hydrogen"
    },
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "hydrogen by-product"
    }
  ],
  "word": "hydrogène de récupération"
}

{
  "categories": [
    "Compositions en français",
    "Locutions nominales en français",
    "Mots au singulier uniquement en français",
    "Traductions en anglais",
    "français"
  ],
  "etymology_texts": [
    "Locutioncomposée de hydrogène et de récupération"
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        "Lexique en français de la chimie",
        "Lexique en français de l’industrie de l’énergie"
      ],
      "glosses": [
        "Hydrogène sous-produit."
      ],
      "raw_tags": [
        "Industrie de l’énergie"
      ],
      "topics": [
        "chemistry"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\i.dʁɔ.ʒɛn də ʁe.ky.pe.ʁa.sjɔ̃\\"
    }
  ],
  "synonyms": [
    {
      "word": "hydrogène coproduit"
    },
    {
      "word": "hydrogène fatal"
    }
  ],
  "tags": [
    "masculine",
    "singular-only"
  ],
  "translations": [
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "by-product hydrogen"
    },
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "hydrogen by-product"
    }
  ],
  "word": "hydrogène de récupération"
}