The Collaborative International Dictionary of English v.0.48:

Beaked \Beaked\ (b[=e]kt), a.
   1. Having a beak or a beaklike point; beak-shaped. "Each
      beaked promontory." --Milton.
      [1913 Webster]

   2. (Biol.) Furnished with a process or a mouth like a beak;
      rostrate.
      [1913 Webster]

   Beaked whale (Zool.), a cetacean of the genus Hyperoodon;
      the bottlehead whale.
      [1913 Webster]

WordNet (r) 3.0 (2006):

beaked whale
    n 1: any of several whales inhabiting all oceans and having
         beaklike jaws with vestigial teeth in the upper jaw