Simple Definition of contagious
: able to be passed from one person or animal to another by touching
: having a sickness that can be passed to someone else by touching
: capable of being easily spread to others : causing other people to feel or act a similar way
Full Definition of contagious
Examples of contagious
It's a highly contagious virus.
I have a cold and I'm still contagious.
I'm sick, but the doctor says I'm not contagious.
First Known Use of contagious
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>
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