WordReference Random House Unabridged Dictionary of American English © 2025
post′traumat′ic stress′ disor′der, [Psychiatry.]
  1. Psychiatrya mental disorder, as battle fatigue, occurring after a traumatic event outside the range of usual human experience, and characterized by symptoms such as reliving the event, reduced involvement with others, and manifestations of autonomic arousal such as hyperalertness and exaggerated startle response. Abbr.: PTSD
  • 1975–80

Collins Concise English Dictionary © HarperCollins Publishers::
post-traumatic stress disorder
  1. a condition, characterized by flashbacks, nightmares, and social withdrawal, which may occur after a traumatic experience
    Abbreviation: PTSD
'posttraumatic stress disorder' also found in these entries (note: many are not synonyms or translations):
PTSD - battle fatigue

Forum discussions with the word(s) "posttraumatic stress disorder" in the title:


Look up "posttraumatic stress disorder" at Merriam-Webster
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