branch sewer[¦branch ¦sü·ər]
A part of a sewer system that is larger in diameter than the lateral sewer system; receives sewage from both house connections and lateral sewers.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A sewer that receives sewage from a relatively small area.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.