Gnathostoma

noun
Gna·thos·to·ma | \ nə-ˈthäs-tə-mə \

Medical Definition of Gnathostoma 

: 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 humans

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