411 REFERENCE · Wiktionary
Massenzahl
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
German
Etymology
de :af Masse Zahl
de Masse Zahl
Pronunciation
de De-Massenzahl.ogg <<Germany>> (<<Berlin>>)
Noun
f
de physics mass number
Declension
f
Further reading