三疊紀 [－叠纪]

Jyutping saam1 dip6 gei2
Pinyin sān dié jì

Definitions (CC-CEDICT)
  1. Triassic (geological period 250-205m years ago)
Definitions (Wiktionary)
  1. name
    the Triassic period (part of the Mesozoic era, spanning from 252.17 to 201.3 million years ago)