shakehole means A steep-sided, often conical, depression caused by slumping of ground into a cavity beneath. Shakeholes may or may not contain a cave entrance and/or a stream sink. Lexicurio rates it Sui generis — a strength score of 89 out of 100.
Etymology
From shake + hole.
noun
- A steep-sided, often conical, depression caused by slumping of ground into a cavity beneath. Shakeholes may or may not contain a cave entrance and/or a stream sink.