"定義上" meaning in Japonais

{
  "categories": [
    {
      "kind": "other",
      "name": "Adverbes en japonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Japonais",
      "orig": "japonais",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Japonais",
  "lang_code": "ja",
  "pos": "adv",
  "pos_title": "Adverbe",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en japonais",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Par définition"
      ],
      "id": "fr-定義上-ja-adv-C172ymY0"
    }
  ],
  "sounds": [
    {
      "ipa": "\\teiɡijō\\"
    }
  ],
  "word": "定義上"
}

{
  "categories": [
    "Adverbes en japonais",
    "japonais"
  ],
  "lang": "Japonais",
  "lang_code": "ja",
  "pos": "adv",
  "pos_title": "Adverbe",
  "senses": [
    {
      "categories": [
        "Wiktionnaire:Exemples manquants en japonais"
      ],
      "glosses": [
        "Par définition"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\teiɡijō\\"
    }
  ],
  "word": "定義上"
}