quadratic
Spell check quadratic
Common misspellings * :
 quadratice (100.0%)
* Misspellings percentages are collected from over 15,231,521 spell check sessions on www.spellchecker.net from Jan 2010  Jun 2012.
Usage examples :

The doctrine that the heavenly bodies were moved by vortices was successively modified, so that it came to coincide in its results with the doctrine of an inverse quadratic centripetal force....
"A System Of Logic, Ratiocinative And Inductive (Vol. 1 of 2)",  
Then he tried to do the sum by algebra, by simple and by quadratic equations, by trigonometry, by logarithms, and by conic sections.
"The Book of Dragons",  
That quadratic problem counted thirty credits.
"Marjorie Dean, High School Junior",  
I grasped very well the fact that a plus quantity killed a minus quantity if they were of equal value, and that a little figure two by the side of a letter meant its square, and I somehow blundered through some simple equations, but when Mr Hasnip lit a scholastic fire under me, and began to force on bigger mathematical flowers from my unhappy soil in the Doctor's scholastic hothouse, I began to feel as if I were blighted, and as if quadratic equations were instruments of torture to destroy boys' brains.
"Burr Junior", 