Welcome to the new LearnersDictionary.com. We want to hear your thoughts about the new design.

infectious

1 ENTRIES FOUND:
Save
infectious/ɪnˈfɛkʃəs/adjective
infectious
/ɪnˈfɛkʃəs/
adjective
Learner's definition of INFECTIOUS  
: capable of causing infection
   b  [more infectious; most infectious]  : capable of being passed to someone else by germs that enter the body
— compare contagious
   c  : suffering from a disease that can be spread to other people by germs
[more infectious; most infectious]  : capable of being easily spread to other people

— infectiously

adverb
Comments & Questions  
Comments & Questions
What made you want to look up infectious? Include any comments and questions you have about this word.