plumb bond[′pləm ‚bänd]
A masonry bond in which corresponding joints (for example, on alternate courses) are aligned.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
In masonry, any bond in which the vertical joints are precisely in line.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.