"tredecennial" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "trēdecennium"
      },
      "expansion": "Latin trēdecennium",
      "name": "uder"
    },
    {
      "args": {
        "1": "en",
        "2": "-al"
      },
      "expansion": "English -al",
      "name": "cog"
    },
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "trēdecim"
      },
      "expansion": "Latin trēdecim",
      "name": "uder"
    },
    {
      "args": {
        "1": "en",
        "2": "-ennial"
      },
      "expansion": "English -ennial",
      "name": "cog"
    }
  ],
  "etymology_text": "Latin trēdecennium + English -al or Latin trēdecim + English -ennial",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "noun",
        "g": "s"
      },
      "expansion": "tredecennial sg",
      "name": "head"
    }
  ],
  "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 undefined derivations",
          "parents": [
            "Undefined derivations",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Thirteen",
          "orig": "en:Thirteen",
          "parents": [
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1952, Proceedings of the IInd International Congress on Criminology III: “Psychiatry, Psychology, Psychoanalysis”, page 65",
          "text": "The tredecennial covered by the period of the survey was in a sense a most remarkable one; for it includes, with almost exact divisions, three significant sub periods: the prewar, the war and the post-war."
        }
      ],
      "glosses": [
        "A period of thirteen years."
      ],
      "id": "en-tredecennial-en-noun-m1V7MDgI",
      "links": [
        [
          "period",
          "period#English"
        ],
        [
          "thirteen",
          "thirteen#English"
        ],
        [
          "years",
          "year#English"
        ]
      ],
      "raw_glosses": [
        "(rare nonce word) A period of thirteen years."
      ],
      "tags": [
        "nonce-word",
        "rare",
        "singular"
      ]
    }
  ],
  "word": "tredecennial"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "trēdecennium"
      },
      "expansion": "Latin trēdecennium",
      "name": "uder"
    },
    {
      "args": {
        "1": "en",
        "2": "-al"
      },
      "expansion": "English -al",
      "name": "cog"
    },
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "trēdecim"
      },
      "expansion": "Latin trēdecim",
      "name": "uder"
    },
    {
      "args": {
        "1": "en",
        "2": "-ennial"
      },
      "expansion": "English -ennial",
      "name": "cog"
    }
  ],
  "etymology_text": "Latin trēdecennium + English -al or Latin trēdecim + English -ennial",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "noun",
        "g": "s"
      },
      "expansion": "tredecennial sg",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English nonce terms",
        "English nouns",
        "English terms derived from Latin",
        "English terms with rare senses",
        "English undefined derivations",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Thirteen"
      ],
      "examples": [
        {
          "ref": "1952, Proceedings of the IInd International Congress on Criminology III: “Psychiatry, Psychology, Psychoanalysis”, page 65",
          "text": "The tredecennial covered by the period of the survey was in a sense a most remarkable one; for it includes, with almost exact divisions, three significant sub periods: the prewar, the war and the post-war."
        }
      ],
      "glosses": [
        "A period of thirteen years."
      ],
      "links": [
        [
          "period",
          "period#English"
        ],
        [
          "thirteen",
          "thirteen#English"
        ],
        [
          "years",
          "year#English"
        ]
      ],
      "raw_glosses": [
        "(rare nonce word) A period of thirteen years."
      ],
      "tags": [
        "nonce-word",
        "rare",
        "singular"
      ]
    }
  ],
  "word": "tredecennial"
}