Definition of "podcast"

podcast

/ˈpɒdkɑːst/

noun
plural podcasts
1. A programme, especially an audio programme, produced on a regular basis, delivered over the Internet in a compressed digital format and designed for playback on computers or portable devices such as mobile phones.
  Quotations
  There's no restriction for what a podcast should and should not be. Of course, if you cover all these topics and more, you may find it harder to find an audience than if you focus on a narrower range and cover it well. Finding listeners is simpler if your podcast can be summarized in a sentence. More people will sample your show if it fits in a category in a podcast directory—like that found in the iTunes Store—than if it ends up lumped in a generic catch-all list.
  2007, Andy [J. Williams] Affleck, “Plan Your Podcast”, in Take Control of Podcasting on the Mac, Berkeley, Calif.: Peachpit Press; republished in “Plan Your Podcast”, in Take Control of Podcasting (1.0), San Diego, Calif.: Alt Concepts, 2020,
  Try listening to a mix of well-known podcasts. You'll soon find that the best always feature hosts that have their own unique voice.
  2016, Matthew Anniss, Create Your Own Podcast, Capstone, page 20
2. (loosely) An individual episode of such a programme.
verb
third-person singular simple present podcasts, present participle podcasting, simple past and past participle podcasted or podcast
1. (transitive) To deliver (information) in the form of a programme, especially an audio programme, over the Internet on a regular basis for playback on computers or portable devices such as mobile phones.
2. (intransitive) To deliver a programme, especially an audio programme, over the Internet on a regular basis for playback on computers or portable devices such as mobile phones.