What is "schizognathous"

Schizognathous \Schi*zog"na*thous\, a. [Schizo- + Gr. ? the jaw.] (Zo["o]l.) Having the maxillo-palatine bones separate from each other and from the vomer, which is pointed in front, as in the gulls, snipes, grouse, and many other birds.

a. (context zoology English) having the maxillopalatine bones separate from each other and from the vomer, which is pointed in front, as in the gulls, snipes, and many other birds