triennial

a. 每三年一次的 n. 三年生植物, 三年发生一次的事

发音

其它 /tɹaɪˈɛniəl/

词形变化

triennials 复数 triennials

释义与例句

n.
  1. 1.

    A third anniversary.

  2. 2.

    A plant that requires three years to complete its life-cycle.

adj.
  1. 1.

    Happening every three years.

    triennial elections

  2. 2.

    Lasting for three years.

    triennial parliaments; a triennial reign

    September 13 1621, James Howell. letter to Sir William Saint John Triennial Subsidies

词汇关系

名词

同义词 2

tercentenary tercentennial

上位词 1

anniversary
形容词

近义相关 2

periodic periodical

词源

From Latin triennium (“three-year period”), from tres (“three”) + annus (“year”). By surface analysis, tri- + -ennial.

来源：wiktionary