be·​loid | \ ˈbē-ˌlȯid\

Definition of beloid

1 : having a shape like that of an arrow
2 of a skull or head : having a contour broad in the occipital and narrow in the frontal regions when viewed from above

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History and Etymology for beloid

borrowed from New Latin belloides, from Greek bélos “missile, dart, arrow” (from bel-, full-grade base of the verb bállein “to throw or strike by throwing,” going back to Indo-European *gʷlh3-) + New Latin -oides -oid entry 2

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