/ Dictionary / Index P powder mill: Meaning and Definition of Find definitions for: pow'der mill" Pronunciation: [key] a mill in which gunpowder is made. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. powder method powder monkey 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