1. having or involving three lines
Usage: mathematics; geometry
2. relating to or expressed in terms of three linear coordinates
Usage: mathematics; coordinate geometry

Examples

• The trilinear coordinates system uses three reference lines to locate points.
• In geometry, trilinear polars are important constructions involving three lines.
• The mathematician studied trilinear forms in his research.
• Trilinear coordinates provide an alternative to Cartesian coordinates in triangle geometry.
• The trilinear equation describes the relationship between the three variables.
• Students learned about trilinear interpolation in their advanced mathematics course.