Definition of "disorder"

disorder

/dɪsˈɔːdə(ɹ)/

noun
countable and uncountable, plural disorders
1. Absence of order; state of not being arranged in an orderly manner.
  Quotations
  It was a household in permanent and benevolent disorder, pervaded by the gentle thrill of religious persecution.
  1986, John le Carré, A Perfect Spy
2. A disturbance of civic peace or of public order.
3. (medicine, countable) A physical or mental malfunction.
verb
third-person singular simple present disorders, present participle disordering, simple past and past participle disordered
1. (transitive) To throw into a state of disorder.
2. (transitive) To knock out of order or sequence.