油ゆ性せいペン

noun

permanent marker; oil-based pen

A pen that uses oil-based ink, often synonymous with permanent markers. Compare 油性マーカー and 油性マジック, which are similar but may emphasize marker form.

See also: 油性マーカー · 油性マジック

• 油ゆ性せいペンで箱はこに名な前まえを書かいた。

  I wrote my name on the box with a permanent marker.

• この油ゆ性せいペンは水みずに濡ぬれてもにじまない。

  This oil-based pen doesn't smudge even when wet.