nasal index
noun
Craniometry. (of the skull) the ratio of the distance from nasion to the lower margin of the nasal aperture to that of the maximum breadth of the nasal aperture.
Cephalometry. (of the head) the ratio of the maximum breadth of the external nose to its height from the nasal root to where the septum is confluent with the upper lip.
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Nearby words
nasal capsule, nasal cavity, nasal concha, nasal crest, nasal gleet, nasal index, nasal meatus, nasal muscle, nasal pit, nasal point, nasal reflex
Origin of nasal index
First recorded in 1895–1900
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for nasal index
nasal index
noun
the ratio of the widest part of the nose to its length multiplied by 100
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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