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元古代

Yuán gǔ dàidictionary entry
DEFINITION CC-CEDICT
Proterozoic (geological era 2500-540m years ago)
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-1a412a1dd52a5a32. Source SHA-256: bbc4b27f26bee1a262f4d7939667a040c7857c7fc0200a2fa7a86d3352a09eae.

Original source entry:

元古代 元古代 [Yuan2 gu3 dai4] /Proterozoic (geological era 2500-540m years ago)/

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

  • 代
    dài

    to be a substitute for / to act on behalf of / to replace / to substitute / generation / dynasty / age / period / (historical) era / (geological) eon

Reference definitions from CC-CEDICT.