splanchnocranium

noun
splanch·​no·​cra·​ni·​um | \ ˌsplaŋk-nō-ˈkrā-nē-əm How to pronounce splanchnocranium (audio) \
plural splanchnocraniums or splanchnocrania\ -​nē-​ə How to pronounce splanchnocrania (audio) \

Medical Definition of splanchnocranium

: the portion of the skull that arises from the first three branchial arches and forms the supporting structure of the jaws

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