三叠纪 / 三疊紀

sān​dié​jì

Triassic Period

The first period of the Mesozoic Era, dating from approximately 250 to 200 million years ago, following the [[二叠纪|二疊紀|er4 die2 ji4]] and preceding the [[侏罗纪|侏羅紀|zhu1 luo2 ji4]].

三 (literal) → 三 · sān · three 叠 (literal) → 叠/疊 · dié · to repeat 纪 (literal) → 纪/紀 · jì · era

Changed: simplified, traditional, gloss, definition, pinyin, variant pinyin, variants, separable parts, decomposition

created sense May 20, 2026, 07:57 PM