"dichromian potasu" meaning in Polonais

{
  "categories": [
    {
      "kind": "other",
      "name": "Genres manquants en polonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions nominales en polonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Polonais",
      "orig": "polonais",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Polonais",
  "lang_code": "pl",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "raw_tags": [
    "genre à préciser : {{m}}, {{f}}, {{mf}}, {{n}} ?"
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en polonais de la chimie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "(nom UICPA) Dichromate de potassium ou bichromate de potassium."
      ],
      "id": "fr-dichromian_potasu-pl-noun-T4lNNC3Y",
      "topics": [
        "chemistry"
      ]
    }
  ],
  "word": "dichromian potasu"
}

{
  "categories": [
    "Genres manquants en polonais",
    "Locutions nominales en polonais",
    "polonais"
  ],
  "lang": "Polonais",
  "lang_code": "pl",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "raw_tags": [
    "genre à préciser : {{m}}, {{f}}, {{mf}}, {{n}} ?"
  ],
  "senses": [
    {
      "categories": [
        "Lexique en polonais de la chimie"
      ],
      "glosses": [
        "(nom UICPA) Dichromate de potassium ou bichromate de potassium."
      ],
      "topics": [
        "chemistry"
      ]
    }
  ],
  "word": "dichromian potasu"
}