bi·quad·rat·ic 
(bī′kwŏ-drătĭk) Mathematics
(bī′kwŏ-drătĭk) Mathematics adj.
Of or relating to the fourth degree.
n.
An algebraic equation of the fourth degree.
- ulterior
- ulteriorly
- ultima
- ultimata
- ultimate
- ultimately
- ultima Thule
- ultimatum
- ultimo
- ultra
- ultra-
- ultrabasic
- ultracentrifugal
- ultracentrifugally
- ultracentrifugation
- ultracentrifuge
- ultraconservatism
- ultraconservative
- ultradian
- ultrafiltration
- ultrahigh
- ultrahigh frequency
- ultraism
- ultraist
- ultraliberal