I. nəˈthästəmə noun plural
Usage: capitalized
Etymology: New Latin, from gnath- + -stoma
in some classifications : a division of Crustacea comprising the Branchiopoda, Ostracoda, and Copepoda
II. noun
Usage: capitalized
Etymology: New Latin, from gnath- + -stoma
: a genus (the type of the family Gnathostomatidae) of spiruroid nematodes comprising parasites living in tumors of the stomach wall of various Old World carnivorous mammals and occasionally invading the subcutaneous tissues of man