"üçüncül" meaning in Turkish

{
  "head_templates": [
    {
      "args": {},
      "expansion": "üçüncül",
      "name": "tr-adj"
    }
  ],
  "hyphenation": [
    "ü‧çün‧cül"
  ],
  "lang": "Turkish",
  "lang_code": "tr",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Turkish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "tertiary"
      ],
      "id": "en-üçüncül-tr-adj-W2GRuT7n",
      "links": [
        [
          "tertiary",
          "tertiary"
        ]
      ],
      "related": [
        {
          "word": "ikincil"
        },
        {
          "word": "dördüncül"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[yt͡ʃynd͡ʒyɫ]"
    }
  ],
  "word": "üçüncül"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "üçüncül",
      "name": "tr-adj"
    }
  ],
  "hyphenation": [
    "ü‧çün‧cül"
  ],
  "lang": "Turkish",
  "lang_code": "tr",
  "pos": "adj",
  "related": [
    {
      "word": "ikincil"
    },
    {
      "word": "dördüncül"
    }
  ],
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Turkish adjectives",
        "Turkish entries with incorrect language header",
        "Turkish lemmas"
      ],
      "glosses": [
        "tertiary"
      ],
      "links": [
        [
          "tertiary",
          "tertiary"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[yt͡ʃynd͡ʒyɫ]"
    }
  ],
  "word": "üçüncül"
}