a clayey rock with the texture and composition of shale but little or no lamination.
a dark grey clay rock similar to shale but with the lamination less well developed
A fine-grained, dark gray sedimentary rock consisting primarily of compacted and hardened silt and clay, similar to shale but without laminations. The proportions of silt and clay in mudstone are approximately equal.
noun, Geology. 1. .
[muhd-suhk-er] /ˈmʌdˌsʌk ər/ noun 1. a goby, Gillichthys mirabilis, of California, used as bait.
noun 1. any of several small, freshwater turtles of the family Kinosternidae, of North and South America, as the dark-brown Kinosternon subrubrum, of the U.S. noun 1. any of various small turtles of the genus Kinosternon and related genera that inhabit muddy rivers in North and Central America: family Kinosternidae
noun the world of baseball, esp. in reference to the ups-and-downs of fandom Examples There is no joy in Mudville for the Chicago Cubs fans. Word Origin from E.L. Thayer poem Casey at the Bat