duodecennial

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English

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Etymology

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From Latin duodecennium (12-year period) + English -al (forming adjs), equivalent to borrowing the unattested duodecennialis.

Pronunciation

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Adjective

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duodecennial (not comparable)

  1. Consisting of twelve years, occurring in 12-year cycles.
    The duodecennial Chinese zodiac originated from Chinese and Indian observations of the duodecennial cycle of the Jovian orbit.
  2. Occurring once a duodecade, occurring every 12 years.
    The concept of a duodecennial "Jupiter return" in Western astrology arose from similar concerns.

Translations

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References

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