Definition of postfrontal in US English:



  • A bone behind the orbit of the eye in some vertebrates.

    • ‘These include parietals which are completely fused along the midline, loss of the postfrontal, and formation of a fairly complete secondary palate.’
    • ‘The skull is low, with postfrontal ridges and dorsal orbits, suggesting the ability to see above the water line.’
    • ‘The postfrontal and jugal form the posterior border of the orbit.’
    • ‘The parietals are only well exposed on the skull roof, as their ventral projections contacting the postfrontal and postorbital are damaged.’
    • ‘In general, its dorsal partners are the squamosal and either the postfrontal or postorbital.’