slurry
Concise Oxford English Dictionary © 2008 Oxford University Press:
slurry/ˈslʌri/
▶noun (pl. slurries) a semi-liquid mixture, especially of fine particles of manure, cement, or coal and water.
– origin ME: rel. to dial. slur ‘thin mud’, of unknown origin.
'slurry' also found in these Oxford entries:

