dovetail halved joint

dovetail half-lap joint, dovetail halved joint, dovetail halving joint

dovetail half-lap joint
A joint formed by two members of equal thickness in which a dovetail, 1 at the end of one member is fitted into a corresponding mortise in the second member; half the thickness of each is removed.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.