/ Dictionary / Index P Prussianism: Meaning and Definition of Find definitions for: Prus•sian•ism Pronunciation: (prush'u-niz"um), [key] — n. the militaristic spirit, system, policy, or methods historically associated with the Prussians. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Prussian blue prussianize Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language