Main Entry: lem·nis·cus Pronunciation: lem-'nis-k&s Function: noun Inflected Form: plurallem·nis·ci/-'nis-"(k)I, -'nis-"kE/ : a band of fibers and especially nerve fibers called also fillet; —see LATERAL LEMNISCUS, MEDIAL LEMNISCUS —lem·nis·cal/-k&l/adjective
lemniscus lem·nis·cus (lěm-nĭs'kəs) n.pl.lem·nis·ci (-nĭs'ī', -nĭs'kī', -nĭs'kē) A bundle of nerve fibers ascending from sensory nuclei in the spinal cord and the rhombencephalon to the thalamus.