\Milk sickness\ (Veter.)
A peculiar malignant disease, occurring in parts of the
western United States, and affecting certain kinds of farm
stock (esp. cows), and persons using the meat or dairy
products of infected cattle. Its chief symptoms in man are
uncontrollable vomiting, obstinate constipation, pain, and
muscular tremors. Its origin in cattle has been variously
ascribed to the presence of certain plants in their food, and
to polluted water.