Umlaufzeit
German, noun[ˈʊmlaʊ̯fˌt͡saɪ̯t]
Umlaufzeit is spelled U-M-L-A-U-F-Z-E-I-T (10 letters) and appears about once in every 12 million words in written German, the 187,243rd most frequent German word form (wordfreq, 2021 data). Umlaufzeit is a German feminine noun meaning “period, circulation period” (English Wiktionary, September 2026). The German Wiktionary defines it as “Dauer der periodischen Bewegung eines Himmelskörpers um einen anderen bis zur Ausgangsposition”.
What does Umlaufzeit mean in English?
noun
- 1
feminineperiod, circulation period
- 2
feminineperiod of circulation, period of revolution
Source: English Wiktionary, German section, dump of September 2, 2026 (CC BY-SA 4.0).
How German dictionaries define it
noun: 1. Dauer der periodischen Bewegung eines Himmelskörpers um einen anderen bis zur Ausgangsposition 2. Dauer bis zur Rückkehr eines Transportmittels (zur Zentrale) 3. Dauer einer Ampelschaltung mit allen Phasen
The definition in the German Wiktionary, in German.
Source: German Wiktionary, dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of Umlaufzeit
- Umlaufzeiten plural
- Umlaufszeit variant
Source: English Wiktionary and German Wiktionary (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce Umlaufzeit?
- [ˈʊmlaʊ̯fˌt͡saɪ̯t]
Sources: English Wiktionary, German Wiktionary (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
How common is Umlaufzeit in German?
Umlaufzeit appears about once in every 12 million words in written German.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).