祖そ型けい

noun

archetype; prototype

Refers to an original model or ancestral form from which later types are derived. Used in biology, anthropology, and design contexts.

• この化か石せきは哺ほ乳にゅう類るいの祖そ型けいと考かんがえられている。

  This fossil is considered an archetype of mammals.

• そのデザインは多おおくの後こう続ぞく製せい品ひんの祖そ型けいとなった。

  That design became the prototype for many subsequent products.