Medical Dictionary

contagious

adj con·ta·gious \-jəs\

Medical Definition of CONTAGIOUS

1
:  communicable by contact <tuberculosis in the contagious stage>—compare infectious 2
2
:  bearing contagion <many persons…are contagious long before they are aware of the presence of their disease—Journal of the American Medical Association>
3
:  used for contagious diseases <a contagious ward>
con·ta·gious·ly adverb
con·ta·gious·ness noun
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears