外がい被ひ

noun

outer covering; protective coat; casing; jacket

Technical term for an outer protective layer or enclosure, used for cables, machinery, or biological structures.

• このケーブルは外がい被ひが丈じょう夫ぶで、屋おく外がいでも使つかえます。

  This cable has a durable outer jacket and can be used outdoors.