Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. 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.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Employing four independent channels or speakers.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. of or relating to quadraphony

Etymologies

quadri- + phonic (Wiktionary)

Examples

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