'Merlin' definitions:

Definition of 'Merlin'

(from WordNet)
noun
(Arthurian legend) the magician who acted as King Arthur's advisor
noun
Small falcon of Europe and America having dark plumage with black-barred tail; used in falconry [syn: pigeon hawk, merlin, Falco columbarius]

Definition of 'Merlin'

From: GCIDE
  • Merlin \Mer"lin\, n. [OE. merlion, F. ['e]merillon; cf. OHG. smirl, G. schmerl; prob. fr. L. merula blackbird. Cf. Merle.] (Zool.) A small European falcon (Falco columbarius, syn. {Falco lithofalco}, or Falco aesalon). In North America called also pigeon hawk. [1913 Webster +PJC]