渐新统 / 漸新統

jiàn​xīn​tǒng

Oligocene

Oligocene system in geology; a series of rock layers formed during the Oligocene epoch

渐 (literal) → 渐/漸 · jiàn · gradually 新 (literal) → 新 · xīn · new 统 (literal) → 统/統 · tǒng · series

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

created sense May 20, 2026, 07:57 PM