“Salami slicing” refers to the practice of breaking scientific studies down into small chunks and publishing each part as a seperate paper.

Given that scientists are judged in large part by the number of peer-reviewed papers they produce, it’s easy to understand the temptation to engage in salami publication. It’s officialy discouraged, but it’s still very common to see researchers writing perhaps 3 or 4 papers based on a single project that could, realistically, have been one big paper.