点てん線せん

noun

dotted line; perforated line

Refers to a line made of dots or dashes, often used in diagrams, forms, or for cutting guides.

• 点てん線せんに沿そって切きってください。

  Please cut along the dotted line.

• 地ち図ずの点てん線せんは県けん境きょうを示しめしている。

  The dotted line on the map indicates the prefectural border.