quadratic

 
Pronunciation: /kwɒˈdratɪk/

adjective

Mathematics
  • involving the second and no higher power of an unknown quantity or variable: a quadratic equation

noun

  • a quadratic equation.

Origin:

mid 17th century: from French quadratique or modern Latin quadraticus, from quadratus 'made square', past participle of quadrare (see quadrate)