disorder

[dis-awr-der]
noun
1.
lack of order or regular arrangement; confusion: Your room is in utter disorder.
2.
an irregularity: a disorder in legal proceedings.
3.
breach of order; disorderly conduct; public disturbance.
4.
a disturbance in physical or mental health or functions; malady or dysfunction: a mild stomach disorder.
verb (used with object)
5.
to destroy the order or regular arrangement of; disarrange.
6.
to derange the physical or mental health or functions of.

Origin:
1470–80; dis-1 + order

predisorder, noun


1. disorderliness, disarray, jumble, litter, clutter. 3. riot, turbulence. Disorder, brawl, disturbance, uproar are disruptions or interruptions of a peaceful situation. Disorder refers to civil unrest or to any scene in which there is confusion or fighting: The police went to the scene of the disorder. A brawl is a noisy, unseemly quarrel, usually in a public place: a tavern brawl. A disturbance is disorder of a size as to inconvenience people: to cause a disturbance. An uproar is a tumult, a bustle and clamor of many voices, often because of a disturbance: a mighty uproar. 4. ailment, malady, illness, complaint, sickness, indisposition. 5. disarray, mess up, disorganize. 6. disturb, upset, confuse.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
disorder (dɪsˈɔːdə)
 
n
1.  a lack of order; disarray; confusion
2.  a disturbance of public order or peace
3.  an upset of health; ailment
4.  a deviation from the normal system or order
 
vb
5.  to upset the order of; disarrange; muddle
6.  to disturb the health or mind of

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

disorder
late 15c., from dis- "not" (see dis-) + the verb order (see order). Replaced earlier disordeine (mid-14c.), from O.Fr. desordainer, from M.L. disordinare "throw into disorder," from L. dis- "take away" + ordinare "to order, regulate." Related: Disordered.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

disorder dis·or·der (dĭs-ôr'dər)
n.
A disturbance or derangement that affects the function of mind or body, such as an eating disorder or the abuse of a drug. v. dis·or·dered, dis·or·der·ing, dis·or·ders
To disturb the normal physical or mental health of; derange.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences for disorders
Infectious disorders of blood blood is an important vector of infection.
Online textbook of endocrinology with chapters on growth and pituitary
  disorders.
He says that such misuse left him with permanent pancreatic disorders.
Pws and as represent the first reported instances of imprinting disorders in
  humans.
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