Definition of iron curtain
1 : an impenetrable barrier the iron curtain between the ego and the unconscious — C. J. Rolo
2 : a political, military, and ideological barrier that cuts off and isolates an area; specifically, often capitalized : one formerly isolating an area under Soviet control
First Known Use of iron curtain
Learn More about iron curtain
Britannica.com: Encyclopedia article about iron curtain
Seen and Heard
What made you want to look up iron curtain? Please tell us where you read or heard it (including the quote, if possible).