shell shock
noun/ˈʃel ʃɒk/
/ˈʃel ʃɑːk/
[uncountable]- a mental illness caused by fighting in a war This term is most often used in relation to soldiers fighting in the First World War. The condition is now usually called post-traumatic stress disorder.Topics Mental healthc2Word OriginFirst World War: with reference to exposure to shellfire.
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shell shock