元 古 宙

Yuán gǔ zhòudictionary entry

pre-Cambrian (geological eon 2500-645m)

Sources & editorial notes

Reference definitions: CC-CEDICT contributors and MDBG, CC BY-SA 4.0. Source release 2026-10-27T01:55:52Z. Imported 2026-10-27. Definition wording and meaning order are retained. Recognized pronunciation references are displayed with tone marks; the original source record is available below.

Source record: cd-aaca204729b1b67e. Source SHA-256: bbc4b27f26bee1a262f4d7939667a040c7857c7fc0200a2fa7a86d3352a09eae.

Original source entry:

元古宙元古宙 [Yuan2 gu3 zhou4] /pre-Cambrian (geological eon 2500-645m)/

Reference definitions and teaching material have separate provenance.

Reference information

The definitions above are from CC-CEDICT. Examples and usage notes are available on selected entries.

Character information

View the individual characters. Their meanings do not necessarily explain the meaning of the whole word.

元
yuán
currency unit (esp. Chinese yuan) / (bound form) first / original / primary / (bound form) basic / fundamental / (bound form) constituent / part / (prefix) meta- / (math.) argument / variable / era (of a reign) / (Tw) (geology) eon
Yuán
surname Yuan / Yuan dynasty (1279–1368)
古
gǔ
ancient / old / paleo-
Gǔ
surname Gu
宙
zhòu
eternity / (geology) eon

Reference definitions from CC-CEDICT.