WordReference Random House Unabridged Dictionary of American English © 2026
cephal′ic in′dex, 
  1. Anatomy, Physical Anthropology[Cephalom., Craniom.]the ratio of the greatest breadth of the head to its greatest length from front to back, multiplied by 100.
  • 1865–70

Collins Concise English Dictionary © HarperCollins Publishers::
cephalic index
  1. the ratio of the greatest width of the human head to its greatest length, multiplied by 100
'cephalic index' also found in these entries (note: many are not synonyms or translations):
brachycephalic - cranial index - dolichocephalic - longhead - mesocephalic - shorthead

Forum discussions with the word(s) "cephalic index" in the title:


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