Plural of derangement; multiple instances or types of mental disorder or physical disruption.
Simple plural form of 'derangement' (derangement + -s). The plural form allows discussing multiple instances of disorder or instability.
Medical texts from the 1800s refer to different 'derangements' of the body—it was the word doctors used before modern medicine understood that cholera or fevers were caused by specific germs, thinking instead that various bodily 'derangements' caused disease.
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