quad·ri·phon·ic 
(kwŏd′rə-fŏnĭk)
(kwŏd′rə-fŏnĭk)adj.
Variant of quadraphonic.
quadri·phon′y n.
- extraordinary
- extrapolate
- extrapolation
- extrapolative
- extrapolator
- extrapyramidal
- extrasensory
- extrasensory perception
- extrasolar
- extrasystole
- extrasystolic
- extraterrestrial
- extraterritorial
- extraterritoriality
- extraterritorially
- extratropical
- extrauterine
- extravagance
- extravagancy
- extravagant
- extravagantly
- extravaganza
- extravagate
- extravasate
- extravasation