Restiform adj. (Anat.) Formed like a rope; applied especially to several ropelike bundles or masses of fibers on the dorsal side of the medulla oblongata.
... in animals born of parents in which an injury to the restiform body had produced that protrusion of the eyeball. This interesting fact I have witnessed a good many times, and I have seen the transmission of the morbid state of the eye continue through four generations. ... — The Humour of Homer and Other Essays • Samuel Butler