Bible Dictionaries
Sludge

Webster's Dictionary

(1):

(n.) Mud; mire; soft mud; slush.

(2):

(n.) See Slime, 4.

(3):

(n.) Small floating pieces of ice, or masses of saturated snow.

(4):

(n.) Anything resembling mud or slush; as: (a) A muddy or slimy deposit from sweage. (b) Mud from a drill hole in boring. (c) Muddy sediment in a steam boiler. (d) Settling of cottonseed oil, used in making soap, etc. (e) A residuum of crude paraffin-oil distillation.

Bibliography Information
Webster, Noah. Entry for 'Sludge'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​s/sludge.html. 1828.