第四紀 [－－纪]

Jyutping dai6 sei3 gei2
Pinyin dì sì jì

Definitions (CC-CEDICT)
  1. fourth period
  2. quaternary (geological period covering the recent ice ages over the last 180,000 years)
Definitions (Wiktionary)
  1. name
    the Quaternary period (part of the Cenozoic era, spanning from 2.588 million years ago until the present)
    (syn.) 晚第三纪, 晚第三紀
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）