1. (Science: ecology) A roundish depression in a road surface, bed of a stream or wetland caused by local erosion.

2. (Science: geology) A deep cavity within a rock formation having its opening at the upper surface.

Please contribute to this project, if you have more information about this term feel free to edit this page

This page was last modified on 3 October 2005, at 21:16. This page has been accessed 945 times. 
What links here | Related changes | Permanent link