銅どう器き時じ代だい

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じ

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Meanings

1

noun

Archaeological term for the transitional period between the Neolithic and the Bronze Age, characterized by the use of copper tools.

青せい銅どう器き時じ代だい
Refers to the Bronze Age, which follows the Copper Age and involves alloying copper with tin.
新しん石せっ器き時じ代だい
Refers to the Neolithic period, which precedes the Copper Age and is characterized by polished stone tools.

Compound of 銅器 (copper tool) and 時代 (period, age). The term is a direct calque from Western archaeological terminology.