myofibrilla

noun
myo·​fi·​bril·​la | \ -fī-ˈbril-ə How to pronounce myofibrilla (audio) , -fi-; -ˈfī-bri-lə How to pronounce myofibrilla (audio) , -ˈfi- How to pronounce myofibrilla (audio) \
plural myofibrillae\ -​ˌlē How to pronounce myofibrillae (audio) \

Medical Definition of myofibrilla