noun
one-way mirror; two-way mirror
A mirror that is partially reflective and partially transparent, allowing observation from the darker side. Often used in interrogation rooms or observation studies.
See also: マジックミラー
警察の取調室には覗き鏡が設置されている。
A one-way mirror is installed in the police interrogation room.
心理学の実験で、覗き鏡越しに子供の行動を観察した。
In the psychology experiment, we observed the children's behavior through a one-way mirror.
マジックミラー is a common loanword synonym for one-way mirror, often used in everyday conversation. 覗き鏡 is a more descriptive Japanese term.
Compound of 覗き (のぞき, 'peeping') + 鏡 (かがみ, 'mirror').