foreign body

Noun

An unwanted, intruding object or piece of matter.

Japanese Meaning

異物（不要で侵入してきた物体、または物質）

The nurse carefully removed a small foreign body from the child's ear.

看護師は子どもの耳から小さな異物を慎重に取り除いた。

Sense（1）

An unwanted, intruding object or piece of matter.

The foreign body stuck inside the dog's stomach turned out to be a bottle cap.

foreign bodies

（ plural ）