quad·rat·ic 
(kwŏ-drătĭk)
(kwŏ-drătĭk)adj.
Mathematics
Mathematics
Of, relating to, or containing quantities of the second degree.
[From QUADRATE.]
quad·ratic n.
quad·rati·cal·ly adv.
- interminably
- intermingle
- intermission
- intermit
- intermittence
- intermittent
- intermittent claudication
- intermittent current
- intermittently
- intermitter
- intermix
- intermodal
- intermodulation
- intermontane
- intermountain
- in terms of
- intern
- internal
- internal-combustion engine
- internal ear
- internal energy
- internality
- internalization
- internalize
- internalizer