"pléistocène" meaning in French

{
  "forms": [
    {
      "form": "pléistocènes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pléistocène (plural pléistocènes)",
      "name": "fr-adj"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Pleistocene"
      ],
      "id": "en-pléistocène-fr-adj-TIolE2L5",
      "links": [
        [
          "Pleistocene",
          "Pleistocene"
        ]
      ]
    }
  ],
  "word": "pléistocène"
}

{
  "forms": [
    {
      "form": "pléistocènes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pléistocène (plural pléistocènes)",
      "name": "fr-adj"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "French adjectives",
        "French entries with incorrect language header",
        "French lemmas",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "Pleistocene"
      ],
      "links": [
        [
          "Pleistocene",
          "Pleistocene"
        ]
      ]
    }
  ],
  "word": "pléistocène"
}