from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A mirror that is reflective on one side and transparent on the other, often used in surveillance. Also called two-way mirror.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A mirror reflecting images on one side and transparent on the other, often used by the police during an interrogation.
See one-way. (Wiktionary)
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