Definition of infectiously adverb from the Oxford Advanced Learner's Dictionary

 

infectiously

 adverb
adverb
BrE BrE//ɪnˈfekʃəsli//
 
; NAmE NAmE//ɪnˈfekʃəsli//
 
 
jump to other results
in a way that causes other people to do or feel the same to laugh infectiously