Fibril (noun)

1. A very thin thread-like structure, especially one of the small fibers that make up muscle, nerve, or connective tissue.
2. A small bundle of fibers that make up a larger structure, such as a muscle or nerve.

Origin:

Fibril is derived from the latin word "fibrilla" meaning a small fiber. the word fibril was first used in the late 18th century in the field of anatomy and biology.

Examples:

1. The microscope revealed that the muscle tissue was made up of many small fibrils.
2. The nerve tissue was composed of countless fibrils that were constantly transmitting impulses.
3. The scientists studied the fibrils that make up the structure of the tendons and ligaments.
4. The fibrils in the muscle tissue were damaged as a result of the disease.
5. The research team was able to study the fibrils in the brain using advanced imaging techniques.