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orbital index

American  

noun

Craniometry.

  1. the ratio of the maximum breadth to the maximum height of the orbital cavity multiplied by 100.

Etymology

Origin of orbital index

First recorded in 1875–80

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.