Trisection means to divide or split into three parts. Some of the synonyms for the word "trisection" are three-way division, tripartite separation, and ternary segmentation. Other words that can be used as synonyms for trisection include trichotomy, tripartition, and triple segmentation. These synonyms can be used interchangeably depending on the context and the intended meaning. The word trisection can be used in different fields such as mathematics, geometry, architecture, and biology among others. Understanding synonyms for trisection can help in improving vocabulary and communication skills, especially when expressing complex ideas or concepts.