torpedo(redirected from torpedo rays)
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Military A self-propelled explosive projectile weapon, launched above or below the water surface, propelled underwater toward a target, and designed to detonate on contact with, or in proximity to, a target, usually understood to be a ship
Neuropathology A focal fusiform swelling of the axons of Purkinje cells, located in the first portion of the axis cylinder prior to the origin of collateral branches, often accompanied by swollen dendritic ramifications and patchy displacement of Purkinje cells, a typical pathologic finding in olivopontocerebellar atrophy of the granular layer of the cerebellum
fusiform swellings of proximal axonal segments of cerebellar Purkinje cells in cases of perennial rye grass mycotoxicosis and some forms of storage disease.