an informal name for triangulation station. Also called (Austral and NZ): trig
Word origin
from trigonometric
triangulation station in British English
noun
a point used in triangulation as a basis for making maps. Triangulation stations are marked in a number of ways, such as by a tapering stone pillar on a hilltop
Also called (informal): trig point or (Austral. and NZ) trig
Examples of 'trig point' in a sentence
trig point
The image will be as high as possible, centrally below the trig point, but will only be visible for a short time.
Times, Sunday Times (2012)
Each tower is so much higher than anything else around it that it reconfigures the cityscape, creating a new trig point.