/ Dictionary / Index C contagious: Meaning and Definition of Find definitions for: con•ta•gious Pronunciation: (kun-tā'jus), [key] — adj. capable of being transmitted by bodily contact with an infected person or object: contagious diseases. carrying or spreading a contagious disease. tending to spread from person to person: contagious laughter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: contagious (Thesaurus) contagion contagious abortion Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language