Symmetral is a term most commonly used in geometry. It refers to a line that divides a line segment into two equal parts, and also to a line that is perpendicular to the midpoint of a line segment. In other words, a symmetral is a line of symmetry in a line segment. There are several synonyms for the word symmetral that can help add variety and depth to your language. These include equidistant, bisector, axis of symmetry, center line, dividing line, middle line, and median line. Using synonyms for symmetral can make your writing more engaging and accessible to readers who may not be familiar with geometry terminology.