fastigium

noun
fas·​tig·​i·​um | \ fa-ˈstij-ē-əm How to pronounce fastigium (audio) \

Medical Definition of fastigium

1 : the period at which the symptoms of a disease (as a febrile disease) are most pronounced
2 : the angle in the roof of the fourth ventricle of the brain

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to reflect, repel, echo, or resound

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