"decadal" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "decade",
        "3": "al"
      },
      "expansion": "decade + -al",
      "name": "suffix"
    }
  ],
  "etymology_text": "decade + -al",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "decadal (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "_dis": "77 23",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "78 22",
          "kind": "other",
          "name": "English terms suffixed with -al",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Of or related to the number ten."
      ],
      "id": "en-decadal-en-adj-YVHdX3w5",
      "links": [
        [
          "related",
          "related"
        ],
        [
          "number",
          "number"
        ],
        [
          "ten",
          "ten"
        ]
      ],
      "related": [
        {
          "_dis1": "74 26",
          "sense": "base-10 numeration",
          "word": "decimal"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    },
    {
      "examples": [
        {
          "ref": "2017, W. Hugh Woodin, In search of Ultimate-L: The 19th Midrasha Mathematicae Lectures (Version: January 30, 2017), p. 2",
          "text": "About the same time in a decadal sense, there was a rather unexpected discovery."
        }
      ],
      "glosses": [
        "Of or related to a decade, in its various senses."
      ],
      "id": "en-decadal-en-adj-UEa15N7U",
      "links": [
        [
          "related",
          "related"
        ],
        [
          "decade",
          "decade"
        ],
        [
          "various",
          "various"
        ],
        [
          "sense",
          "sense"
        ]
      ],
      "synonyms": [
        {
          "_dis1": "34 66",
          "sense": "in some contexts",
          "word": "decennial"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[dɪˈkeɪdəɫ]",
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "decadal"
}

{
  "categories": [
    "English adjectives",
    "English entries with incorrect language header",
    "English lemmas",
    "English terms suffixed with -al",
    "English terms with IPA pronunciation",
    "English uncomparable adjectives"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "decade",
        "3": "al"
      },
      "expansion": "decade + -al",
      "name": "suffix"
    }
  ],
  "etymology_text": "decade + -al",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "decadal (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "sense": "base-10 numeration",
      "word": "decimal"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Of or related to the number ten."
      ],
      "links": [
        [
          "related",
          "related"
        ],
        [
          "number",
          "number"
        ],
        [
          "ten",
          "ten"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    },
    {
      "examples": [
        {
          "ref": "2017, W. Hugh Woodin, In search of Ultimate-L: The 19th Midrasha Mathematicae Lectures (Version: January 30, 2017), p. 2",
          "text": "About the same time in a decadal sense, there was a rather unexpected discovery."
        }
      ],
      "glosses": [
        "Of or related to a decade, in its various senses."
      ],
      "links": [
        [
          "related",
          "related"
        ],
        [
          "decade",
          "decade"
        ],
        [
          "various",
          "various"
        ],
        [
          "sense",
          "sense"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[dɪˈkeɪdəɫ]",
      "tags": [
        "UK"
      ]
    }
  ],
  "synonyms": [
    {
      "sense": "in some contexts",
      "word": "decennial"
    }
  ],
  "word": "decadal"
}