/ Dictionary / Index C coinfectious immunity: Meaning and Definition of Find definitions for: co•in•fec'tious immu'nity Pronunciation: (kō"in-fek'shus), [key] premunition. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. coincident indicator coinheritance Related Content Daily Word Quiz: drowsy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language