"quadratic" in the noun sense
1. quadratic equation, quadratic
an equation in which the highest power of an unknown quantity is a square
2. quadratic, quadratic polynomial
a polynomial of the second degree
"quadratic" in the adjective sense
1. quadratic
involving the second and no higher power of a quantity or degree
"quadratic equation"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License