Definition of webcast noun from the Oxford Advanced Learner's Dictionary

 

webcast

 noun
noun
BrE BrE//ˈwebkɑːst//
 
; NAmE NAmE//ˈwebkæst//
 
Websites
 
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a live broadcast that is sent out on the Internet We were able to watch a live webcast of the eclipse. See related entries: Websites Word Origin 1990s: blend of web in the sense ‘World Wide Web’ and (broad)cast.
See the Oxford Advanced American Dictionary entry: webcast