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Definition of Derangement
1. Noun. A state of mental disturbance and disorientation.
Exact synonyms: Mental Unsoundness, Unbalance
Generic synonyms: Insanity
Derivative terms: Derange, Unbalance
Generic synonyms: Insanity
Derivative terms: Derange, Unbalance
2. Noun. The act of disturbing the mind or body. "She was unprepared for this sudden overthrow of their normal way of living"
Definition of Derangement
1. n. The act of deranging or putting out of order, or the state of being deranged; disarrangement; disorder; confusion; especially, mental disorder; insanity.
Definition of Derangement
1. [n -S]
Medical Definition of Derangement
1. 1. A disturbance of the regular order or arrangement. 2. Rarely used term for a mental disturbance or disorder. Origin: Fr. Hey's internal derangement, dislocation of the semilunar cartilages of the knee joint. (05 Mar 2000)