\Death's"-head`\, n.
A naked human skull as the emblem of death; the head of the
conventional personification of death.

      I had rather be married to a death's-head with a bone
      in his mouth.                            --Shak.

{Death's-head moth} (Zo["o]l.), a very large European moth
   ({Acherontia atropos}), so called from a figure resembling
   a human skull on the back of the thorax; -- called also
   {death's-head sphinx}.