prognathism

from WordNet (r) 3.0 (2006)

prognathism
    n 1: the condition of being prognathous; the condition of having
         a projecting jaw

from The Collaborative International Dictionary of English v.0.48

Prognathism \Prog"na*thism\ (pr[o^]g"n[.a]*th[i^]z'm or
   pr[o^]g*n[=a]"th[i^]z'm), n. (Anat.)
   Projection of the jaws. -- {Prog"na*thy}, n.
   [1913 Webster]