Definition of cat-head:
(n) :
Alternative form of cathead. [(nautical) A heavy piece of timber projecting somewhat horizontally from each side of the bow of a ship on which an anchor is raised or lowered, and secured when not used, from its stock end.]
(v) :
Alternative form of cathead. [(transitive, nautical) Synonym of cat (“to hoist (an anchor) so that it hangs at the cathead (noun noun, sense 1.1)”)]