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Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

de·range·ment

Audio Help [di-reynj-muh

–noun

1.	the act of deranging.

insanity.

3.	disarrangement; disorder.

[Origin: 1730–40; < F dérangement. See derange, -ment

]

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

Encyclopædia Britannica, Inc.
Derangement

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American Heritage Dictionary - Cite This Source - Share This

de·range Audio Help (dĭ-rānj') Pronunciation Key
tr.v. de·ranged, de·rang·ing, de·rang·es

To disturb the order or arrangement of.
To upset the normal condition or functioning of.
To disturb mentally; make insane.

[French déranger, from Old French desrengier : des-, de- + reng, line (of Germanic origin; see sker-² in Indo-European roots).]

de·range'ment n.

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

WordNet - Cite This Source - Share This

derangement
noun
1.	a state of mental disturbance and disorientation
2.	the act of disturbing the mind or body; "his carelessness could have caused an ecological upset"; "she was unprepared for this sudden overthrow of their normal way of living" [syn: upset]

American Heritage Stedman's Medical Dictionary - Cite This Source - Share This

de·range·ment (d-rnjmnt)
n.

Disturbance of the regular order or arrangement of parts in a system.
Mental disorder; insanity.

de·range v.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Merriam-Webster's Medical Dictionary - Cite This Source - Share This

Main Entry: de·range·ment
Pronunciation: di-'rAnj-m&nt
Function: noun
1 : a disturbance of normal bodily functioning or operation <derangements in the secretion of adaptive hormones —Hans Selye>
2 : INSANITY —de·range /di-'rAnj/ transitive verb de·ranged; de·rang·ing

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Derangement

De*range"ment\, n. [Cf. F. d['e]rangement.] The act of deranging or putting out of order, or the state of being deranged; disarrangement; disorder; confusion; especially, mental disorder; insanity.

Syn: Disorder; confusion; embarrassment; irregularity; disturbance; insanity; lunacy; madness; delirium; mania. See Insanity.

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Derangement

In*san"i*ty\, n. [L. insanitas unsoundness; cf. insania insanity, F. insanite.]

1. The state of being insane; unsoundness or derangement of mind; madness; lunacy.

All power of fancy overreason is a degree of insanity. --Johnson.

Without grace The heart's insanity admits no cure. --Cowper.

2. (Law) Such a mental condition, as, either from the existence of delusions, or from incapacity to distinguish between right and wrong, with regard to any matter under action, does away with individual responsibility.

Syn: Syn>- Insanity, Lunacy, Madness, Derangement, Aliention, Aberration, Mania, Delirium, Frenzy, Monomania, Dementia.

Usage: Insanity is the generic term for all such diseases; lunacy has now an equal extent of meaning, though once used to denote periodical insanity; madness has the same extent, though originally referring to the rage created by the disease; derangement, alienation, are popular terms for insanity; delirium, mania, and frenzy denote excited states of the disease; dementia denotes the loss of mental power by this means; monomania is insanity upon a single subject.

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