The term 'story published in installments' can be summarized as a SERIAL. A SERIAL is a story that is published in parts, usually over a period of time. It is often seen in magazines, newspapers, and other forms of media. Serialized stories are typically released in episodes or chapters, allowing readers to follow the story as it progresses. This type of storytelling has been popular for centuries, with some of the earliest examples being found in ancient Greek and Roman literature.