便 べん
ben

Noun
na-Adjective

1. convenience; service; facility; accommodation

先日 せんじつ便 びん回虫 かいちゅう ました。
senjitsubinni kaichūga demashita.
He had a roundworm in his stool the other day.
Noun

2. excreta (esp. faeces); excrement; stool