Definition of spectral index in English:

spectral index

Syllabification: spec·tral in·dex

noun

An exponential factor relating the flux density of a radio source to its frequency.

More definitions of spectral index

Definition of spectral index in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day semblance
Pronunciation: ˈsembləns
noun
the outward appearance or apparent form of something…