bobtailed

from WordNet (r) 3.0 (2006)

bobtailed
    adj 1: having a short or shortened tail; "bobtail mare" [syn:
           {bobtail}, {bobtailed}]

from The Collaborative International Dictionary of English v.0.48

Bobtailed \Bob"tailed`\, a.
   Having the tail cut short, or naturally short; curtailed; as,
   a bobtailed horse or dog; a bobtailed coat.
   [1913 Webster]