From Wiktionary, the free dictionary
bohren (“to bore, drill”) + -ung (“-ing”)
Bohrung f (genitive Bohrung, plural Bohrungen)
- bore (the result of drilling, e.g a hole)
- drilling, boring
Declension of Bohrung [feminine]
- “Bohrung” in Duden online
- “Bohrung” in Digitales Wörterbuch der deutschen Sprache