DUODECENNIAL
Source: 567
Du′o‐de‐cen″ni‐al (?), a. [[L. duodecennis; duodecim twelve + annus year.]] Consisting of twelve years. Ash.
Source: 567
Du′o‐de‐cen″ni‐al (?), a. [[L. duodecennis; duodecim twelve + annus year.]] Consisting of twelve years. Ash.