Definition of nonic in English:

nonic

noun

Mathematics
  • An expression, equation, or curve of the ninth order or degree.

adjective

Mathematics
  • Of the ninth order or degree.

Origin

Mid 19th century; earliest use found in Arthur Cayley (1821–1895), mathematician. From nona- + -ic.

Pronunciation

nonic

/ˈnəʊnɪk/