trig point
See also: trigpoint
English
Etymology
< triangulation point
Noun
trig point (plural trig points)
- (Britain) A fixed pillar with a metal housing for a theodolite on the top of a high point in the landscape; originally used for making Ordnance Survey maps.
- Any fixed structure that marks a measuring point used in triangulation
Synonyms
- triangulation pillar
- triangulation station
- trigonometrical point
Translations
fixed pillar for a theodolite
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