第三纪

dì sān jì

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Definitions

  1. 1. third period
  2. 2. tertiary (geological era since the extinction of the dinosaurs at the Cretaceous-Tertiary boundary 65 million years ago)

Child Words of 第三纪

三
sān

three

第
dì

(prefix indicating ordinal number, as in 第六[dì liù] \sixth\)

纪
jì

order