| Term: | Frost boil |
| Definition: | 1.An accumulation of water and mud released from ground ice by spring thawing. 2.A small mound of fresh soil material, formed by frost action. |
| Term: | Frost boil |
| Definition: | A small mound of soil material, presumed to have been formed by frost action. A type of nonsorted circle; they are commonly found in fine-grained sediments underlain by permafrost, but also occur in non-permafrost areas. Or mud boil |
| Term: | Frost boil |
| Definition: | A small mound of soil material, presumed to have been formed by frost action. |
| Term: | Frost boil |
| Definition: | A small mound of soil material, presumed to have been formed by frost action |