"Platonian" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc:Πλάτων",
        "3": "-ian",
        "t1": "Plato"
      },
      "expansion": "Ancient Greek Πλάτων (Plátōn, “Plato”) + -ian",
      "name": "af"
    }
  ],
  "etymology_text": "From Ancient Greek Πλάτων (Plátōn, “Plato”) + -ian.",
  "forms": [
    {
      "form": "more Platonian",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most Platonian",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Platonian (comparative more Platonian, superlative most Platonian)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -ian",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Platonic."
      ],
      "id": "en-Platonian-en-adj-KfU6yKeR",
      "links": [
        [
          "Platonic",
          "Platonic"
        ]
      ]
    }
  ],
  "word": "Platonian"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc:Πλάτων",
        "3": "-ian",
        "t1": "Plato"
      },
      "expansion": "Ancient Greek Πλάτων (Plátōn, “Plato”) + -ian",
      "name": "af"
    }
  ],
  "etymology_text": "From Ancient Greek Πλάτων (Plátōn, “Plato”) + -ian.",
  "forms": [
    {
      "form": "more Platonian",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most Platonian",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Platonian (comparative more Platonian, superlative most Platonian)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English terms derived from Ancient Greek",
        "English terms suffixed with -ian",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "Platonic."
      ],
      "links": [
        [
          "Platonic",
          "Platonic"
        ]
      ]
    }
  ],
  "word": "Platonian"
}