"retardism" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "retard",
        "3": "ism"
      },
      "expansion": "retard + -ism",
      "name": "suffix"
    }
  ],
  "etymology_text": "From retard + -ism.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "retardism (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 suffixed with -ism",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1972, Charles W. Telford, James M. Sawrey, The Exceptional Individual, page 373:",
          "text": "Epileptic seizures are rather common among the mentally retarded, but are considered to be concomitant with the retardism rather than a cause of it.",
          "type": "quote"
        },
        {
          "ref": "1974, Childhood Education, volume 51, page 226:",
          "text": "Chapter titles reveal attention to specific areas of emotional disability, including behavior disorders; symptomatic autism in adolescence; pseudo-retardism; school refusal; anorexia nervosa; and passive, aggressive, selective mutes.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Mental retardation"
      ],
      "id": "en-retardism-en-noun-NyExQ9bK",
      "links": [
        [
          "Mental",
          "mental"
        ],
        [
          "retardation",
          "retardation"
        ]
      ],
      "raw_glosses": [
        "(dated) Mental retardation"
      ],
      "tags": [
        "dated",
        "uncountable"
      ]
    }
  ],
  "word": "retardism"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "retard",
        "3": "ism"
      },
      "expansion": "retard + -ism",
      "name": "suffix"
    }
  ],
  "etymology_text": "From retard + -ism.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "retardism (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English dated terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms suffixed with -ism",
        "English terms with quotations",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1972, Charles W. Telford, James M. Sawrey, The Exceptional Individual, page 373:",
          "text": "Epileptic seizures are rather common among the mentally retarded, but are considered to be concomitant with the retardism rather than a cause of it.",
          "type": "quote"
        },
        {
          "ref": "1974, Childhood Education, volume 51, page 226:",
          "text": "Chapter titles reveal attention to specific areas of emotional disability, including behavior disorders; symptomatic autism in adolescence; pseudo-retardism; school refusal; anorexia nervosa; and passive, aggressive, selective mutes.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Mental retardation"
      ],
      "links": [
        [
          "Mental",
          "mental"
        ],
        [
          "retardation",
          "retardation"
        ]
      ],
      "raw_glosses": [
        "(dated) Mental retardation"
      ],
      "tags": [
        "dated",
        "uncountable"
      ]
    }
  ],
  "word": "retardism"
}