Definition of trig point in English:

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trig point

Pronunciation: /ˈtrɪɡpɔɪnt/

Entry from British & World English dictionary

noun

British
A reference point on high ground used in surveying, typically marked by a small pillar.
Example sentences
  • Bear left on the top to join the tarmac of the mast access road and the trig point summit pillar is passed on the left.
  • A bank and ditch ran north-west towards the main camp on the central knoll near the trig point.
  • When I eventually reached the trig point on the 2,759 ft / 841m summit of Vrackie I swore I would never climb the hill again.

Origin

Mid 19th century: abbreviation of trigonometrical point.

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