one-way mirror

noun

Definition of one-way mirror

: a piece of glass that is a mirror on one side but that can be seen through like a window from the other side

More from Merriam-Webster on one-way mirror

Spanish Central: Translation of one-way mirror

Comments on one-way mirror

What made you want to look up one-way mirror? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

of or relating to the heavens

Get Word of the Day daily email!

Test Your Vocabulary

Summer 2019 Words of the Day Quiz

  • a-bowl-of-peach-sorbet-with-cut-peaches-next-to-it
  • Which is a synonym of desideratum?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Syn City

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!