Longitudinal division is a term used to describe the splitting of something lengthwise. There are several synonyms for this term that can be used depending on the context. One alternative term for longitudinal division is "bisecting," which refers to cutting something in half along its length. Another term is "partitioning," which denotes dividing something into sections or compartments along its length. "Segmentation" can also be used to describe a process of dividing something into smaller parts or segments along its length. Additionally, "hiving" refers to separating something into smaller pieces along its length, and "splitting" refers to dividing something lengthwise into two or more parts.