/ Dictionary / Index S speciesism: Meaning and Definition of Find definitions for: spe•cies•ism Pronunciation: (spē'shē-ziz"um, -sē-ziz"-), [key] — n. discrimination in favor of one species, usually the human species, over another, esp. in the exploitation or mistreatment of animals by humans. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. species species-specific Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language