/ Dictionary / Index S sectarianism: Meaning and Definition of Find definitions for: sec•tar•i•an•ism Pronunciation: (sek-târ'ē-u-niz"um), [key] — n. sectarian spirit or tendencies; excessive devotion to a particular sect, esp. in religion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sectarianism (Thesaurus) sectarian sectarianize Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language