"circannual" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "circa-",
        "3": "annual",
        "alt1": "circ(a)"
      },
      "expansion": "circ(a) + annual",
      "name": "af"
    }
  ],
  "etymology_text": "Formed as circ(a) + annual, after circadian.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "circannual (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "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 terms prefixed with circa-",
          "parents": [],
          "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": "Biology",
          "orig": "en:Biology",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "circannually"
        }
      ],
      "examples": [
        {
          "ref": "1956, USAF School of Aerospace Medicine, Report [80-114], [1956], page 11:",
          "text": "[…] because morbidity and mortality from cardiovascular disease also reveal statistically significant circadian and circannual rhythms.",
          "type": "quote"
        },
        {
          "ref": "2000, Martin Hume Johnson, Barry J. Everitt, Essential Reproduction, page 110:",
          "text": "Circannual rhythms control reproductive function in seasonal breeders.",
          "type": "quote"
        },
        {
          "ref": "2001, Joseph S. Takahashi, Fred W. Turek, Robert Y. Moore, Handbook of Behavioral Neurobiology, page 523:",
          "text": "Seasonal variations in locomotor activity are generated by a circannual clock […].",
          "type": "quote"
        }
      ],
      "glosses": [
        "Occurring or having cycles of approximately annual periodicity"
      ],
      "id": "en-circannual-en-adj-1oZrBfCb",
      "links": [
        [
          "biology",
          "biology"
        ],
        [
          "annual",
          "annual"
        ]
      ],
      "raw_glosses": [
        "(biology) Occurring or having cycles of approximately annual periodicity"
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "biology",
        "natural-sciences"
      ]
    }
  ],
  "word": "circannual"
}

{
  "derived": [
    {
      "word": "circannually"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "circa-",
        "3": "annual",
        "alt1": "circ(a)"
      },
      "expansion": "circ(a) + annual",
      "name": "af"
    }
  ],
  "etymology_text": "Formed as circ(a) + annual, after circadian.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "circannual (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms prefixed with circa-",
        "English terms with quotations",
        "English uncomparable adjectives",
        "Pages with 1 entry",
        "Pages with entries",
        "Quotation templates to be cleaned",
        "en:Biology"
      ],
      "examples": [
        {
          "ref": "1956, USAF School of Aerospace Medicine, Report [80-114], [1956], page 11:",
          "text": "[…] because morbidity and mortality from cardiovascular disease also reveal statistically significant circadian and circannual rhythms.",
          "type": "quote"
        },
        {
          "ref": "2000, Martin Hume Johnson, Barry J. Everitt, Essential Reproduction, page 110:",
          "text": "Circannual rhythms control reproductive function in seasonal breeders.",
          "type": "quote"
        },
        {
          "ref": "2001, Joseph S. Takahashi, Fred W. Turek, Robert Y. Moore, Handbook of Behavioral Neurobiology, page 523:",
          "text": "Seasonal variations in locomotor activity are generated by a circannual clock […].",
          "type": "quote"
        }
      ],
      "glosses": [
        "Occurring or having cycles of approximately annual periodicity"
      ],
      "links": [
        [
          "biology",
          "biology"
        ],
        [
          "annual",
          "annual"
        ]
      ],
      "raw_glosses": [
        "(biology) Occurring or having cycles of approximately annual periodicity"
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "biology",
        "natural-sciences"
      ]
    }
  ],
  "word": "circannual"
}