sheath; casing; protective cover
General term for a close-fitting protective cover, especially for cables, wires, or mechanical parts. Borrowed from English 'sheath'.
ケーブルのシースが傷んでいるので交換が必要だ。
The cable sheath is damaged, so it needs to be replaced.
wire cap; terminal cover
Specifically refers to a small insulating cap placed over the end of a wire or terminal. Common in electrical work.
配線後、端子にシースを取り付けてください。
After wiring, please attach a terminal cover to the terminal.
この機械のシースは耐熱性に優れている。
The sheath of this machine has excellent heat resistance.
sheathed heater
sheath silhouette
Borrowed from English 'sheath'. The specific electrical sense 'wire cap' is a semantic extension in Japanese technical usage.