Japanese

Noun

こんにゅう ‎(romaji konnyū)

1. 混入: the act of mixing; the state of being mixed; a mixing or mingling of two or more things, typically in an undesirable way

Verb

こんにゅうする ‎(transitive and intransitive, romaji konnyū suru)

1. 混入: to mix one thing into another, typically in an undesirable way; to mingle, to become mixed, to get mixed, typically in an undesirable way