Definition of quadratic

adjective (a)

• of or relating to or resembling a square (adj.pert)

  Example:
  Quadratic shapes.
  

  source: wordnet30
• of or relating to the second power (adj.pert)

  Example:
  Quadratic equation.
  

  source: wordnet30
• Of or pertaining to a square, or to squares; resembling a quadrate, or square; square. (adjective)

  source: webster1913

noun (n)

• an equation in which the highest power of an unknown quantity is a square (noun.communication)

  Synonym: quadratic equation
  

  source: wordnet30
• a polynomial of the second degree (noun.cognition)

  Synonym: quadratic polynomial
  

  source: wordnet30

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