Definition of nasal index in US English:

nasal index

noun

  • 1Physical Anthropology. An indicator of nose size and shape obtained by multiplying the ratio of nose breadth to height by 100.

  • 2Medicine. A measure of nasal discomfort or affliction in an illness or allergy, calculated by adding scores representing nasal stuffiness, nasal discharge, and sneezing.

Origin

Late 19th century; earliest use found in Journal of the Royal Anthropological Institute. From nasal + index, after French indice nasal.

Pronunciation

nasal index

/ˌneɪzl ˈɪndɛks/