DCHP-2

sink-hole West DCHP-1 (pre-1967)

• 1 n.

  an organic bog which is a brown to black mixture of water and living and dead vegetation often covered with a carpet of sphagnum or other mosses and often of considerable depth.

  See also: muskeg (def. 1)  

  • 1910  "A sink-hole, well it's as you may say--a muskeg."
  • 1910  Elizabeth had ample time during the ensuing sixteen hours for inquiry as to the nature of sink-holes.

• 2 n.

  See quote.

  See also: pothole (def. 3a)  

  • 1963  [A] sinkhole [is] a small depression in the prairie, usually with alkaline springs below it and therefore having no herbage.