Medical Dictionary

intrafusal

adj in·tra·fu·sal \-ˈfyü-zəl\

Medical Definition of INTRAFUSAL

:  situated within a muscle spindle <intrafusal muscle fibers>—compare extrafusal

Browse

How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears