"paedolinguistics" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "paedo",
        "3": "linguistics"
      },
      "expansion": "paedo- + linguistics",
      "name": "prefix"
    }
  ],
  "etymology_text": "paedo- + linguistics",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "paedolinguistics (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with paedo-",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "The study of child language."
      ],
      "id": "en-paedolinguistics-en-noun-ujhedD48",
      "links": [
        [
          "study",
          "study"
        ],
        [
          "child language",
          "child language"
        ]
      ],
      "raw_glosses": [
        "(rare) The study of child language."
      ],
      "tags": [
        "rare",
        "uncountable"
      ]
    }
  ],
  "word": "paedolinguistics"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "paedo",
        "3": "linguistics"
      },
      "expansion": "paedo- + linguistics",
      "name": "prefix"
    }
  ],
  "etymology_text": "paedo- + linguistics",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "paedolinguistics (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms prefixed with paedo-",
        "English terms with rare senses",
        "English uncountable nouns"
      ],
      "glosses": [
        "The study of child language."
      ],
      "links": [
        [
          "study",
          "study"
        ],
        [
          "child language",
          "child language"
        ]
      ],
      "raw_glosses": [
        "(rare) The study of child language."
      ],
      "tags": [
        "rare",
        "uncountable"
      ]
    }
  ],
  "word": "paedolinguistics"
}