noun 1.a digital audio or video file or recording, usually part of a themed series, that can be downloaded from a Web site to a media player or computer: Download or subscribe to daily, one-hour podcasts of our radio show.
verb (used without object), verb (used with object) 2.to record and upload as a podcast: He podcasts once a week on various topics. She podcasts her lectures.
Related forms pod·cast·er, noun