- Main Entry:
- Oder

- Pronunciation:
-
\ˈō-dər\
- Variant(s):
- or Odra
\ˈȯ-drə\
- Function:
- geographical name
river about 565 miles (909 kilometers) central Europe rising in the mountains of Silesia, Czech Republic & flowing N to join Neisse River & thence N into the Baltic Sea