Prognathous

[prɒgnәθәs]

(adj.) having a projecting lower jaw .

Inputed by Bruno--From WordNet

(a.) Having the jaws projecting beyond the upper part of the face; -- opposed to orthognathous. See Gnathic index, under Gnathic.

Checked by Clive

adj. having jaws projecting far forward—also Prognath′ic.—n. Prog′nathism.

Checker: Wayne