無む土ど器き時じ代だい

noun

preceramic period

Archaeological term for the period before pottery was used in Japan; synonymous with 先土器時代. Rare in everyday language.

See also: 先土器時代

• 無む土ど器き時じ代だいの遺い跡せきからは石せっ器きが多おおく出しゅつ土どする。

  Many stone tools are excavated from sites of the preceramic period.