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
quadri- + phonic (Wiktionary)