/ Dictionary / Index P protective slope: Meaning and Definition of Find definitions for: protec'tive slope' Pronunciation: [key] a slope given to a yard or the like to drain surface water away from a building. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. protective custody protective system Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language