noun sink·hole \ˈsiŋk-ˌhōl\

: a low area or hole in the ground that is formed especially when soil and rocks are removed by flowing water

Full Definition of SINKHOLE

:  a hollow place or depression in which drainage collects
:  a hollow in a limestone region that communicates with a cavern or passage
:  sink 2
:  something (as an unprofitable investment) that steadily drains money or resources <a financial sinkhole>

First Known Use of SINKHOLE

15th century

Other Geology Terms

anthracite, boulder, cwm, erratic, igneous, intrusive, mesa, sedimentary, silt, swale


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June 30, 2015
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