Definition of emoticon noun from the Oxford Advanced American Dictionary

 

emoticon

 noun
noun
NAmE//ɪˈmoʊt̮ɪˌkɑn//
 
(computing)
 
jump to other results
a short set of keyboard symbols that represents the expression on someone's face, used in e-mail, etc. to show the feelings of the person sending the message. For example :-) represents a smiling face (when you look at it sideways).
See the Oxford Advanced Learner's Dictionary entry: emoticon