/ Dictionary / Index E environmental resistance: Meaning and Definition of Find definitions for: environmen'tal resist'ance Pronunciation: [key] the limiting effect of environmental conditions on the numerical growth of a population. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Environmental Protection Agency environmental science Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language