Definition of whirling disease in English:

whirling disease

Line breaks: whirl|ing dis|ease

noun

[mass noun]
A disease of trout caused by a parasitic protozoan, affecting the balance of the fish and causing it to swim with a whirling motion.
More example sentences
  • In yet another controversy, the new EPA chief's family fish farm stands accused of introducing trout infected with the deadly whirling disease - which causes fish to swim in circles - into Utah rivers.
  • In some rivers whirling disease causes little harm to fish, but it can also suddenly erupt, causing a so-called ‘hot zone’ in which thousands of young fish die.

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Word of the day bimble
Pronunciation: ˈbimbəl
verb
walk or travel at a leisurely pace