noun prog·na·thism \ˈpräg-nə-ˌthi-zəm, präg-ˈnā-\

Definition of PROGNATHISM

:  the condition marked by a prognathous jaw
prog·na·thic \präg-ˈna-thik, -ˈnā-\ adjective

First Known Use of PROGNATHISM

circa 1864


noun prog·na·thism \ˈpräg-nə-ˌthiz-əm, präg-ˈnā-\   (Medical Dictionary)

Medical Definition of PROGNATHISM

:  prognathous condition


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