Word: trigpoints
Part of speech: Noun
Syllables: trig
points
Definition: Plural of trigpoint. A triangulation pillar.
Morphemes:
Affix: trigpoint
Language: en
PoS: Noun
Meaning: A triangulation pillar. 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.
Affix: -s
Language: en
PoS: Suffix
Meaning: Used to form many pluralia tantum (nouns that are almost or entirely without singular forms).