"répétition espacée" meaning in French

{
  "forms": [
    {
      "form": "répétitions espacées",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "~"
      },
      "expansion": "répétition espacée f (countable and uncountable, plural répétitions espacées)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "spaced repetition"
      ],
      "id": "en-répétition_espacée-fr-noun-TKZIivvF",
      "links": [
        [
          "spaced repetition",
          "spaced repetition"
        ]
      ],
      "tags": [
        "countable",
        "feminine",
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ʁe.pe.ti.sjɔ̃ ɛs.pa.se/"
    }
  ],
  "word": "répétition espacée"
}

{
  "forms": [
    {
      "form": "répétitions espacées",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "~"
      },
      "expansion": "répétition espacée f (countable and uncountable, plural répétitions espacées)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "French countable nouns",
        "French entries with incorrect language header",
        "French feminine nouns",
        "French lemmas",
        "French multiword terms",
        "French nouns",
        "French nouns with red links in their headword lines",
        "French terms with IPA pronunciation",
        "French uncountable nouns"
      ],
      "glosses": [
        "spaced repetition"
      ],
      "links": [
        [
          "spaced repetition",
          "spaced repetition"
        ]
      ],
      "tags": [
        "countable",
        "feminine",
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ʁe.pe.ti.sjɔ̃ ɛs.pa.se/"
    }
  ],
  "word": "répétition espacée"
}