desmognathous


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desmognathous

(of jaws) having large, spongy maxillopalatine bones, usually united ventral to the vomer. Such jaws are found in swans, geese, ducks, parrots and some birds of prey.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005