tricennial

a. 30年的; 30年一度的

释义与例句

adj.
  1. 1.

    Of or related to a tricennalia, the celebrations marking the 30th year of a Roman emperor's rule.

    历史
  2. 2.

    Of, related to, lasting, or occurring once every thirty years.

词源

From Latin trīcennium (“30-year period”) + -al, from trīcennis (“30-year”) + -ium, from trīciēs (“30 times”) + annus (“year”) + -is. Compare Latin tricennalis. Equivalent to tri- + decennial. Doublet of tricennal.

来源：wiktionary