The Collaborative International Dictionary of English v.0.48:

Bactrian \Bac"tri*an\, a.
   Of or pertaining to Bactria in Asia. -- n. A native of
   Bactria.
   [1913 Webster]

   Bactrian camel, the two-humped camel.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Bactrian camel
    n 1: two-humped camel of the cold deserts of central Asia [syn:
         Bactrian camel, Camelus bactrianus]