English Explanatory Dictionary

nonius

English dictionary entry

Meanings

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 A device for adjusting the accuracy of mathematical instruments, later superseded by the vernier.

Pronunciation

/ˈnəʊnɪəs/

Word forms

nonius noniuses

Etymology

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

Derived words

nonius horopter
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