Definition of Troughton. Meaning of Troughton. Synonyms of Troughton
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Definition of Troughton
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Troughton level Dumpy level Dump"y lev"el (Surv.)
A level having a short telescope (hence its name) rigidly
fixed to a table capable only of rotatory movement in a
horizontal plane. The telescope is usually an inverting one.
It is sometimes called the Troughton level, from the name
of the inventor, and a variety improved by one Gavatt is
known as the Gavatt level.