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Nonius (horse)
WiktionaryText
Etymology
Latinised form of the name of Pedro Nuñes (1502-78), a Portuguese mathematician and geographer.
Noun
- a device for adjusting the accuracy of mathematical instruments, later superseded by the vernier
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- 1997: Well, of course, one must manipulate the various Screw-Settings precisely, read the Nonius, and an hundred other details besides I’d but bore you with — Thomas Pynchon Mason & Dixon
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