myofilament my·o·fil·a·ment (mī'ə-fĭl'ə-mənt)
n.
Any of the ultramicroscopic filaments, made up of actin and myosin, that are the structural units of a myofibril.
| a scrap or morsel of food left at a meal. |
| a chattering or flighty, light-headed person. |