/ Dictionary / Index D disorder: Meaning and Definition of Find definitions for: dis•or•der Pronunciation: (dis-ôr'dur), [key] — n. lack of order or regular arrangement; confusion: Your room is in utter disorder. an irregularity: a disorder in legal proceedings. breach of order; disorderly conduct; public disturbance. a disturbance in physical or mental health or functions; malady or dysfunction: a mild stomach disorder. —v.t. to destroy the order or regular arrangement of; disarrange. to derange the physical or mental health or functions of. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: disorder (Thesaurus) disopyramide disordered Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language