[oh-loo, ou-; Finn. oh-loo] 
| 1. | a city in W Finland, on the Gulf of Bothnia. 94,680. |
| 2. | a river in central Finland, flowing NE to the Gulf of Bothnia. ab. 65 mi. (105 km) long. |
| Ou·lu (ō'lōō, ou'-) A city of west-central Finland on the Gulf of Bothnia at the mouth of the Oulu River, about 105 km (65 mi) long. Oulu grew around a castle built in 1590 and was chartered in 1610. Population: 130,000. |
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