Bil"la*bong` (?), n. [Native name.] In Australia, a blind channel leading out from a river; -- sometimes called an anabranch. This is the sense of the word as used in the Public Works Department; but the term has also been locally applied to mere back-waters forming stagnant pools and to certain water channels arising from a source.

Bil"la*bong` (?), n. [Native name.] In Australia, a blind channel leading out from a river; -- sometimes called an anabranch. This is the sense of the word as used in the Public Works Department; but the term has also been locally applied to mere back-waters forming stagnant pools and to certain water channels arising from a source.

• (Australian) A stagnant pool of water.
  
• A streambed that is only filled with water during the rainy season.
  
• A channel that dead-ends which extends from the main part of a river.
  
• An oxbow lake.