bra·chis·to·cephalic adjective alsobrachistocephalous\braˈkistō, brəˈ-+\ Etymology: Greek brachistos (superlative of brachys short) + English -cephalic, -cephalous — more at brief : brachycephalic with a cephalic index of 85 or more — compare eurycephalic • bra·chis·to·ceph·a·ly\“+|sefəlē\noun-es