iron curtain
noun
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
From the M-W Editors
1819
First Known Use of iron curtain
1819
Learn More about iron curtain
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Britannica.com: Encyclopedia article about iron curtain
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