(In singular and plural) bloody diarrhoea in livestock; especially (in sheep) infestation with parasitic nematodes of the genus Trichostrongylus, and (in pigs) swine dysentery.
Origin
Mid 18th century; earliest use found in William Ellis (c1700–1758), agriculturist and writer.
Definition of black scour in US English:
black scour
noun
(In singular and plural) bloody diarrhoea in livestock; especially (in sheep) infestation with parasitic nematodes of the genus Trichostrongylus, and (in pigs) swine dysentery.
Origin
Mid 18th century; earliest use found in William Ellis (c1700–1758), agriculturist and writer.