'Lapstrake' definitions:

Definition of 'Lapstrake'

From: GCIDE

Lapstreak \Lap"streak`\, Lapstrake \Lap"strake`\, lap-streaked \lap-streaked\, lap-straked \lap-straked\a. Made with boards whose edges lap one over another; clinker-built; -- said of boats. Contrasted with carvel-built.
Syn: lap-jointed, overlapping. [1913 Webster]