"علم زبان" meaning in Persan

{
  "categories": [
    {
      "kind": "other",
      "name": "Locutions nominales en persan",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Persan",
      "orig": "persan",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de علم « science » et زبان « langue »."
  ],
  "lang": "Persan",
  "lang_code": "fa",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "raw_tags": [
    "علم زبان",
    "علوم زبان"
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en persan de la linguistique",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Linguistique."
      ],
      "id": "fr-علم_زبان-fa-noun-Wkvu~oX6",
      "topics": [
        "linguistic"
      ]
    },
    {
      "glosses": [
        "Philologie."
      ],
      "id": "fr-علم_زبان-fa-noun-F01NOv8M"
    }
  ],
  "tags": [
    "plural"
  ],
  "word": "علم زبان"
}

{
  "categories": [
    "Locutions nominales en persan",
    "persan"
  ],
  "etymology_texts": [
    "Composé de علم « science » et زبان « langue »."
  ],
  "lang": "Persan",
  "lang_code": "fa",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "raw_tags": [
    "علم زبان",
    "علوم زبان"
  ],
  "senses": [
    {
      "categories": [
        "Lexique en persan de la linguistique"
      ],
      "glosses": [
        "Linguistique."
      ],
      "topics": [
        "linguistic"
      ]
    },
    {
      "glosses": [
        "Philologie."
      ]
    }
  ],
  "tags": [
    "plural"
  ],
  "word": "علم زبان"
}