lengthening joint[′leŋk·thə‚niŋ ‚jȯint]
A joint between two members running in the same direction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Any joint (e.g., a halved, lapped, or scarfed joint) used to increase the length of a timber.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.