Swallet

• (n.) Water breaking in upon the miners at their work; -- so called among tin miners.
Found on http://thinkexist.com/dictionary/meaning/swallet/

Swallet

Swal'let noun [ Confer German schwall a sea swell, from schwellen to swell, English swell .] Water breaking in upon the miners at their work; -- so called among tin miners. [ Prov. Eng.]
Found on http://www.encyclo.co.uk/webster/S/254

swallet

place where water disappears underground
Found on http://phrontistery.info/s.html

swallet

Usually related to karst, may be considered as a form of sinkhole, but could refer to a streamsink; (often associated with a cave entrance) and is one of the major entry points for recharge waters that drain underground in carbonate rock areas such as limestone. Swallets may empty directly into open or choked cave features such as shafts or avens, ...
Found on http://www.cancaver.ca/docs/glossary.htm
No exact match found