quad·ra·phon·ic also quad·ri·phon·ic (kwŏd′rə-fŏnĭk)
Of or for a four-channel sound system in which speakers are positioned at all four corners of the listening space, reproducing signals that are independent of each other.
qua·drapho·ny (kwŏ-drăfə-nē) n.
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Indo-European & Semitic Roots Appendices
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