Definitions from Wiktionary (triangulation pillar)
▸ noun: (UK) 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.
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▸ noun: (UK) 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.
Similar:
triangulation station,
trig point,
retriangulation,
trigonometrical station,
trigpoint,
triangulation,
phototriangulation,
theodolite,
levelling staff,
survey monument,
more...
▸ Words similar to triangulation pillar
▸ Usage examples for triangulation pillar
▸ Idioms related to triangulation pillar
▸ Wikipedia articles (New!)
▸ Words that often appear near triangulation pillar
▸ Rhymes of triangulation pillar
▸ Invented words related to triangulation pillar