Duodecennial

Adjective

Definitions

1.AdjectiveConsisting 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.AdjectiveOccurring once a duodecade, occurring every 12 years.

"The concept of a duodecennial "Jupiter return" in Western astrology arose from similar concerns."

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