Source : Webster's Revised Unabridged Dictionary (1913)

Zeppelin \Zep`pe*lin"\ (ts[e^]p`p[~e]*l[=e]"; Angl.
   z[e^]p"p[-e]*l[i^]n), n.
   A dirigible balloon of the rigid type, consisting of a
   cylindrical trussed and covered frame supported by internal
   gas cells, and provided with means of propulsion and control.
   It was first successfully used by Ferdinand Count von
   Zeppelin.

Source : WordNet®

Zeppelin
     n 1: German inventor who designed and built the first rigid
          motorized dirigible (1838-1917) [syn: {Count Ferdinand
          von Zeppelin}]
     2: a large rigid dirigible designed to carry passengers or
        bombs [syn: {Graf Zeppelin}]