411 REFERENCE · Wiktionary
Brechzahl
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
German
Etymology
de :af brechen Zahl
de brechen Zahl
Pronunciation
de De-Brechzahl.ogg <<Germany>> (<<Berlin>>)
Noun
f
de physics refractive index
Declension
f