Sludge (?), n. [CF. Slush.]


Mud; mire; soft mud; slush. Mortimer. Tennyson.


Small floating pieces of ice, or masses of saturated snow. Kane.

3. (Mining)

See Slime, 4.

Sludge hole, the hand-hole, or manhole, in a steam boiler, by means of which sediment can be removed.


© Webster 1913

Sludge (?), 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.


© Webster 1913