第四纪

第四紀
Dìsì Jì
  1. (geology) the Quaternary period (part of the Cenozoic era, spanning from 2.588 million years ago until the present)
  2. the Quaternary period (part of the Cenozoic era, spanning from 2.588 million years ago until the present)

Wiktionary

Homographs

第四纪 dìsìjì
  1. fourth period
  2. quaternary (geological period covering the recent ice ages over the last 180,000 years)

Entry Composition

1 第四 dì-sì
  1. fourth
  2. fourthly
=2 纪 Jǐ
  1. surname Ji
  2. also pr. Jì
=2 纪 jì
  1. order
  2. discipline
  3. age
  4. era
  5. period
  6. to chronicle