n.
Pronunciation: ( ˌ )tr ī - ˌ a ŋ -gy ə - ' l ā -sh ə n
Function: noun
Date: 1818
: the measurement of the elements necessary to determine the network of triangles into which any part of the earth's surface is divided in surveying broadly : any similar trigonometric operation for finding a position or location by means of bearings from two fixed points a known distance apart