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Medical Dictionary

whirling disease

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

Medical Definition of whirling disease

  1. :  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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a division or portion of a pool or whole

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