trig point
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See also: trigpoint
English[edit]
Etymology[edit]
< triangulation point
Noun[edit]
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[edit]
Translations[edit]
fixed pillar for a theodolite
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