microbloggingPronunciation: /ˈmʌɪkrə(ʊ)ˌblɒgɪŋ/Definition of microblogging noun [mass noun] the posting of very short entries or updates on a blog or social media website, typically via a mobile phone. Derivatives microblog noun microblogging in other Oxford dictionaries Definition of microblogging in the US English dictionary