極ごく細ぼそ

noun which may take the genitive case particle 'no'

superfine; extra-fine; extremely thin

Describes something very fine or thin, such as fibers, threads, tips, or particles. Often used as a no-adjective in technical or product contexts.

• このペンは極ごく細ぼその線せんが描かけます。

  This pen can draw superfine lines.

• 極ごく細ぼその繊せん維いを使つかった新あたらしい素そ材ざいが開かい発はつされた。