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.
There are four basic types of triangulation: 1  Data triangulation: involves time, space, and persons. 2  Investigator triangulation: involves multiple researchers in an investigation. 3  Theory triangulation: involves using more than one theoretical scheme in the interpretation of the phenomenon.