desmocranium

noun
des·​mo·​cra·​ni·​um | \ ˌdez-mə-ˈkrā-nē-əm, ˌdes-, -mō- How to pronounce desmocranium (audio) \
plural desmocraniums or desmocrania\ -​nē-​ə How to pronounce desmocrania (audio) \

Medical Definition of desmocranium

: the earliest mesenchymal precursor of the chondrocranium