quad·ri·phon·ic 
(kwŏd′rə-fŏnĭk)
(kwŏd′rə-fŏnĭk)adj.
Variant of quadraphonic.
quadri·phon′y n.
- concernment
- concert
- concerted
- concertedly
- concertgoer
- concertgoing
- concert grand
- concertina
- concertina wire
- concertino
- concertize
- concertmaster
- concertmistress
- concerto
- concerto grosso
- concert pitch
- concession
- concessionaire
- concessional
- concessionary
- concessioner
- concessive
- concessively
- conch
- conch-