English version

two-way mirror

From Longman Dictionary of Contemporary English
Related topics: Daily life
two-way mirrorˌtwo-way ˈmirror noun [countable]  Dglass that is a mirror from one side, but that you can see through from the other
Examples from the Corpus
two-way mirrorLifeline 1990 consists of a two-way mirror, paint, light, timers and wood.It had been a short honeymoon: one night in front of a two-way mirror.
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