/ Dictionary / Index B battle fatigue: Meaning and Definition of Find definitions for: bat'tle fatigue" Pronunciation: [key] — Psychiatry. Psychiatry. a posttraumatic stress disorder occurring among soldiers engaged in active combat, characterized by excessive autonomic arousal, psychic numbing, and persistent reliving of traumatic experiences. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. battle dress battlefield Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language