外がい物ぶつ

noun

external object; foreign matter

Refers to something from the outside, often used in technical or medical contexts for foreign bodies or external substances.

• 傷きず口ぐちに外がい物ぶつが入はいらないように注ちゅう意いしてください。

  Be careful not to let foreign matter get into the wound.

• この装そう置ちは外がい物ぶつの侵しん入にゅうを防ふせぐ設せっ計けいになっている。

  This device is designed to prevent the intrusion of external objects.