The Collaborative International Dictionary of English v.0.48:

Cosmopolitan \Cos`mo*pol"i*tan\, Cosmopolite \Cos*mop"o*lite\,
   a.
   1. Having no fixed residence; at home in any place; free from
      local attachments or prejudices; not provincial; liberal.
      [1913 Webster]

            In other countries taste is perphaps too exclusively
            national, in Germany it is certainly too
            cosmopolite.                          --Sir W.
                                                  Hamilton.
      [1913 Webster]

   2. Common everywhere; widely spread; found in all parts of
      the world.
      [1913 Webster]

            The Cheiroptera are cosmopolitan.     --R. Owen.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Cosmopolitan \Cos`mo*pol"i*tan\ (-p?l"?-tan), Cosmopolite
\Cos*mop"o*lite\ (k?z-m?p"?-l?t), n. [Gr. kosmopoli`ths; ko`smos
   the world + poli`ths citizen, po`lis city: cf. F.
   cosmopolitain, cosmopolite.]
   One who has no fixed residence, or who is at home in every
   place; a citizen of the world.
   [1913 Webster] Cosmopolitan

The Collaborative International Dictionary of English v.0.48:

Cosmopolite \Cos*mop"o*lite\ (-m?p"?-l?t), a. & n.
   See Cosmopolitan.
   [1913 Webster]

WordNet (r) 3.0 (2006):

cosmopolite
    n 1: a sophisticated person who has travelled in many countries
         [syn: cosmopolitan, cosmopolite]

Bouvier's Law Dictionary, Revised 6th Ed (1856):

COSMOPOLITE. A citizen of the world; one who has no fixed. residence. Vide
Citizen.