/ Dictionary / Index H hazardous waste: Meaning and Definition of Find definitions for: haz'ardous waste' Pronunciation: [key] any industrial by-product, esp. from the manufacture of chemicals, that is destructive to the environment or dangerous to the health of people or animals: Hazardous wastes often contaminate ground water. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hazardous haze Related Content Daily Word Quiz: modify Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language