noun. one of many contractile filaments that make up a striated muscle fiber.
- striated muscle cell
- striated muscle fiber
Example sentences of the word myofibril
1. Cardinal number
Creatine may cause dehydration, due to its ability to hydrate your skeletal muscles as a result of a process called myofibril hydration.
2. Noun, singular or mass
Creatine has the ability to pull water from the plasma in your blood stream into your skeletal muscles in a process called myofibril hydration, or muscle hydration.