1 Monica (given name) 2  Monica (singer), R&B singer. 3  Monica (actress), an Indian film actress.  Saint Monica, mother of Augustine.
Definition of triangulation for English Language Learners. : a method of finding a distance or location by measuring the distance between two points whose exact location is known and then measuring the angles between each point and a third unknown point.
Triquetra means âtriangleâ or âthreeâ (tri-) âcorneredâ (quetrus). It is made up of three intersecting vesicae piscis.A vesica piscis in turn is the shape created by the intersection of two congruent circles. A triquetra symbol is sometimes interlaced with a circle.riquetra means âtriangleâ or âthreeâ (tri-) âcorneredâ (quetrus). It is made up of three intersecting vesicae piscis.