malignant catarrh

noun
variants: or less commonly malignant catarrhal fever

Definition of malignant catarrh

1 : a catarrhal fever of cattle apparently caused by a filterable virus and marked by acute edematous inflammation of the respiratory and digestive systems and sometimes of the sinuses of the head and eyes and genitourinary organs
2 : hepatic coccidiosis of the rabbit

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