"暗黒時代" meaning in Japanese

{
  "etymology_text": "Compound of 暗黒 (ankoku, “darkness”) and 時代 (jidai, “period, era”).",
  "forms": [
    {
      "form": "暗黒時代",
      "ruby": [
        [
          "暗",
          "あん"
        ],
        [
          "黒",
          "こく"
        ],
        [
          "時",
          "じ"
        ],
        [
          "代",
          "だい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "ankoku jidai",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "あんこく じだい"
      },
      "expansion": "暗(あん)黒(こく)時(じ)代(だい) • (ankoku jidai)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 4 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with multiple readings",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "a historical period where social disorder is so great due to war, disease, political disorder etc. that there is little or no cultural development; Dark Ages"
      ],
      "id": "en-暗黒時代-ja-noun-jiU1Gred",
      "links": [
        [
          "Dark Ages",
          "Dark Ages"
        ]
      ]
    }
  ],
  "word": "暗黒時代"
}

{
  "etymology_text": "Compound of 暗黒 (ankoku, “darkness”) and 時代 (jidai, “period, era”).",
  "forms": [
    {
      "form": "暗黒時代",
      "ruby": [
        [
          "暗",
          "あん"
        ],
        [
          "黒",
          "こく"
        ],
        [
          "時",
          "じ"
        ],
        [
          "代",
          "だい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "ankoku jidai",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "あんこく じだい"
      },
      "expansion": "暗(あん)黒(こく)時(じ)代(だい) • (ankoku jidai)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms spelled with third grade kanji",
        "Japanese terms with 4 kanji",
        "Japanese terms with multiple readings",
        "Japanese terms with redundant sortkeys",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "a historical period where social disorder is so great due to war, disease, political disorder etc. that there is little or no cultural development; Dark Ages"
      ],
      "links": [
        [
          "Dark Ages",
          "Dark Ages"
        ]
      ]
    }
  ],
  "word": "暗黒時代"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "暗黒時代"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "暗黒時代",
  "trace": ""
}