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shell shock

American  
shell shock British  

noun

  1. Also called: combat neurosis.  loss of sight, memory, etc, resulting from psychological strain during prolonged engagement in warfare

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Etymology

Origin of shell shock

First recorded in 1915–20

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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“It was just kind of a shell shock for me looking at those numbers. I’m like, ‘I thought this would be way more affordable.’”

From The Wall Street Journal Aug. 11, 2026

At its peak during the Korean War, 5,000 men were living and being treated for post-traumatic stress disorder, then known as shell shock.

From Los Angeles Times Jul. 10, 2025

Three-year-old Yuna, who has shell shock, arrived at The Big Cat Sanctuary in Smarden on 17 August and stayed inside her enclosure for a week.

From BBC Aug. 29, 2024

Those dealing with shell shock often had to be sent to hospitals far from the frontlines, and recovery was exceedingly slow as psychologists tried to help them reenter peacetime society.

From Textbooks Dec. 14, 2022

“It was called shell shock and combat fatigue and startle reaction.”

From "Boots on the Ground: America's War in Vietnam" by Elizabeth Partridge

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