miniseries
n. countable B2 Upper Intermediate US //ˈmɪniˌsɛɹiz// UK //mˈɪnɪsəɹiz// minis·eries
n. a television show that tells a whole story in just a few episodes. Unlike a regular series, it is not meant to continue for many years.
n. a television program that tells a complete story within a predetermined, limited number of episodes. Typically longer than a single film but shorter than a standard multi-season series.
We watched the entire miniseries over the weekend.
The historical drama was produced as a six-part miniseries to ensure the complex plot remained faithful to the original novel.
While traditional television relies on open-ended narratives to secure renewals, the miniseries format allows creators to maintain a tight thematic focus and a definitive conclusion.
Usage
The plural form is also 'miniseries'.