double partition

double partition

A partition built with separated framing members for each face so as to form a cavity space in the center for purposes of sound insulation or to conceal sliding doors.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in classic literature ?
"The buds from which the plant men blossomed resembled large nuts about a foot in diameter, divided by double partition walls into four sections.
Two horses to a jetstall furnished in deep shavings with a double partition down the middle and hay to munch up front.