The Collaborative International Dictionary of English v.0.48:

overlapping \overlapping\ adj.
   1. same as clinker-built; -- of ships.

   Syn: lap-jointed, lap-strake, lap-straked, lap-streak,
        lap-streaked.
        [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

overlapping \overlapping\ n.
   A covering with an overlapping design, as with tiles or
   shingles.

   Syn: imbrication, lapping.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

overlapping
    n 1: covering with a design in which one element covers a part
         of another (as with tiles or shingles) [syn: imbrication,
         overlapping, lapping]