roaring

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roaring

the stertor in respiration caused by air passing through a stenosed larynx. The commonest cause is laryngeal hemiplegia in the horse. The disease is incompatible with fast exercise. The cause of the basic lesion, degeneration of fibers in the left recurrent laryngeal nerve, is unknown. See also laryngeal hemiplegia.

roaring burr
surgical instrument used to evert the mucosal lining of the lateral ventricle in the horse in the operation for laryngeal hemiplegia—ventriculectomy; the lining is then excised. Strawberry type has a rough surface reminiscent of the surface of that fruit. French type has a surface covered with small hooks.