Definition of prognathism in English:

prognathism

noun

  • See prognathous

    • ‘The new skull has a rather unusual combination of features: a flat face, high cheek bones, moderate prognathism, small molars, and it lacks a depression behind the brow ridge.’

Pronunciation

prognathism

/ˈprɒɡnəθɪz(ə)m/