webisodePronunciation: /ˈwɛbɪsəʊd/Definition of webisode noun an original episode derived from a television series, made for online viewing. an online video that presents an original short film or promotes a product, film, or television series. Origin: 1990s: blend of web (in the sense 'World Wide Web') and episodewebisode in other Oxford dictionaries Definition of webisode in the US English dictionary