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.
Don't be fooled. Looking at the prefix, tri-, you could probably assume that trigonometry (trig as it's sometimes called) has something to do with triangles. You would be right! Trig is the study of the properties of triangles.