1. A disturbance of the regular order or arrangement. 2. Rarely used term for a mental disturbance or disorder. [Fr.]
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de·range·ment di-'rānj-mənt n
1) a disturbance of normal bodily functioning or operation <\derangements in the secretion of adaptive hormones (Hans Selye)>
2) INSANITY
de·range di-'rānj vt, de·ranged; de·rang·ing
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de·range·ment (de-rānjґmənt) disarrangement of a part or organ.Medical dictionary. 2011.