Pronunciation: (ōl'dun-bûrg"; for 2, 3 also Ger. ōl'dun-boork"),[key] —n. 1. Claes (Thu•re) Pronunciation: (klous toor'u),[key] born 1929, U.S. sculptor, born in Sweden.
2. a former state in NW Germany, now part of Lower Saxony.
3. a city in Lower Saxony in NW Germany: former capital of Oldenburg. 140,200.