acrocranial

adjective

ac·ro·cra·ni·al | \ ¦a-krō-¦krā-nē-əl\

variants: or acrocranic \ ¦a-krō-¦krā-nik \

Definition of acrocranial

of a skull

: being pyramidal or pointed at the top with a breadth-height index of 98 or above

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The first known use of acrocranial was in 1920

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