Dictionary

whirling disease

noun whirl·ing disease \ˈhwər-liŋ-, ˈwər-\

Definition of WHIRLING DISEASE

:  an infectious often fatal disease especially of young salmonid fishes (as trout and salmon) that is caused by a protozoan (Myxobolus cerebralis syn. Myxosoma cerebralis) and is marked by skeletal deformities and a tendency to swim in circles

First Known Use of WHIRLING DISEASE

1946

whirling disease

noun whirl·ing disease \ˈhwər(-ə)l-iŋ-, ˈwər(-ə)l-\   (Medical Dictionary)

Medical Definition of WHIRLING DISEASE

:  an infectious often fatal disease of salmonid fish (as trout and salmon) that is caused by a protozoan (Myxobolus cerebralis synonym Myxosoma cerebralis) of the order Myxosporidia which attacks cartilage of the head and spinal cord especially of young fish and that causes the fish to swim in circles and is marked by skeletal deformities

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