Also found in: Medical.
free-field room[′frē ‚fēld ‚rüm]
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A room whose boundaries absorb almost completely sound waves which are incident upon them; practically no sound is reflected from the boundaries.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.