1. plural of mediatrix; women who act as intermediaries or go-betweens in disputes or negotiations
Usage: formal; rare
2. plural of mediatrix; in geometry, lines that bisect the sides of a triangle perpendicularly
Usage: mathematics; technical

Examples

• The mediatrices worked tirelessly to resolve the labor dispute.
• Several experienced mediatrices were called in to facilitate the peace talks.
• In triangle geometry, the three mediatrices intersect at the circumcenter.
• Students learned to construct the mediatrices of a triangle using compass and straightedge.
• The mediatrices of the triangle’s sides helped locate its circumscribed circle.