: the ratio multiplied by 100 of the maximum breadth of the bare skull to its maximum length from front to back
Example Sentences
Recent Examples on the WebBoas’s finding, which was that the cranial index of children born in America differed from that of children of the same background born in Europe, rocked the field. Louis Menand, The New Yorker, 19 Aug. 2019
Word History
First Known Use
1868, in the meaning defined above
Medical Definition
cranial index
noun
: the ratio multiplied by 100 of the maximum breadth of the bare skull to its maximum length from front to back compare cephalic index