nonius

N1O1N1I1U1S1
/ˈnəʊnɪəs/

noun

A device for adjusting the accuracy of mathematical instruments, later superseded by the vernier.

RareScrabble 6

Meanings

nounnonius (plural noniuses)

plural noniuses

  1. navigationastronomyA device for adjusting the accuracy of mathematical instruments, later superseded by the vernier.

    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,—

    1997, Thomas Pynchon, Mason & Dixon, New York: Henry Holt and Company, →ISBN, →OCLC, page 332

Origin

  1. LatinNonius
  2. Englishnonius

Borrowed from Latin Nonius, the Latinised form of the name of its inventor, Pedro Nunes (1502-78), a Portuguese mathematician and geographer.

Full word history & related roots →

Translations

Bulgarian нониус
  • нониус (nonius)device for adjusting the accuracy of mathematical instruments
Catalan nònius
  • nòniusdevice for adjusting the accuracy of mathematical instruments
Finnish noonio
  • nooniodevice for adjusting the accuracy of mathematical instruments
German Nonius
  • Noniusdevice for adjusting the accuracy of mathematical instruments
Italian nonio
  • noniodevice for adjusting the accuracy of mathematical instruments
Portuguese nônio, nónio
  • nôniodevice for adjusting the accuracy of mathematical instruments
  • nóniodevice for adjusting the accuracy of mathematical instruments
Spanish nonius, nonio
  • noniusdevice for adjusting the accuracy of mathematical instruments
  • noniodevice for adjusting the accuracy of mathematical instruments

Rhymes & wordplay

Rhymes with nonius

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Anagrams

Cite this entry
APA

nonius. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/nonius

MLA

“nonius.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/nonius. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “nonius,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/nonius.

Source: nonius on Wiktionary, CC BY-SA 4.0.