As nouns the difference between surveying and groma
is that surveying is the science of accurately determining the position of points and the distances between them while groma is a Roman surveying instrument having plumb lines hanging from four arms at right angles.
As a verb surveying
is present participle of lang=en.
surveying
Noun
The science of accurately determining the position of points and the distances between them.
Verb
(head)
groma
English
Noun
(
en noun)
A Roman surveying instrument having plumb lines hanging from four arms at right angles
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