Medical Dictionary


noun fas·cic·u·lus \fə-ˈsik-yə-ləs, fa-\
plural fas·cic·u·li \-ˌlī\

Medical Definition of FASCICULUS

:  a slender bundle of fibers: a :  a bundle of skeletal muscle cells bound together by fasciae and forming one of the constituent elements of a muscle b :  a bundle of nerve fibers that follow the same course but do not necessarily have like functional connections (as in some subdivisions of the funiculi of the spinal cord)—compare tract 2 c :  tract 2
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