English Explanatory Dictionary

triangulation pillar

English dictionary entry

Meanings

noun
  1. A concrete pillar used by the Ordnance Survey as a point for taking theodolite measurements, used in determining the exact shape of the country in a mid-20th-century retriangulation project.

Word forms

triangulation pillar triangulation pillars

Synonyms

triangulation station trigpoint trig pillar trigonometrical station
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