parallel baffle muffler

parallel baffle muffler

[′par·ə‚lel ¦baf·əl ′məf·lər]
(design engineering)
A muffler constructed of a series of ducts placed side by side in which the duct cross section is a narrow but long rectangle.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.