"astronomická jednotka" meaning in Tchèque

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en tchèque",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Lemmes en tchèque",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en tchèque",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Unités de mesure en tchèque",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Tchèque",
      "orig": "tchèque",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de astronomický et de jednotka."
  ],
  "lang": "Tchèque",
  "lang_code": "cs",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en tchèque de l’astronomie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Unité astronomique."
      ],
      "id": "fr-astronomická_jednotka-cs-noun-5Y8FIW5v",
      "topics": [
        "astronomy"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈas.trɔ.nɔ.mɪt͡s.kaː ˈjɛd.nɔt.ka\\"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "astronomická jednotka"
}

{
  "categories": [
    "Compositions en tchèque",
    "Lemmes en tchèque",
    "Noms communs en tchèque",
    "Unités de mesure en tchèque",
    "tchèque"
  ],
  "etymology_texts": [
    "Composé de astronomický et de jednotka."
  ],
  "lang": "Tchèque",
  "lang_code": "cs",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Lexique en tchèque de l’astronomie"
      ],
      "glosses": [
        "Unité astronomique."
      ],
      "topics": [
        "astronomy"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈas.trɔ.nɔ.mɪt͡s.kaː ˈjɛd.nɔt.ka\\"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "astronomická jednotka"
}