411 REFERENCE · Wiktionary
Schallmauer
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
German
de:
Etymology
de :af Schall Mauer
de Schall Mauer.
Pronunciation
de /ˈʃalˌmaʊ̯.ɐ/
de De-Schallmauer.ogg <<Germany>> (<<Berlin>>)
de Schall mau er
Noun
f
de physics sound barrier, sonic barrier
de die Schallmauer durchbrechen break the sound barrier
Declension
f
Further reading