fibro-, fibr-, fiber- +

A minute thread of fiber, as one of the fibrous elements of a muscular fiber; a fiber or fibers.

1. Relating to a fibril or consisting of fibrils.
2. Denoting the fine rapid contractions or twitchings of fibers or of small groups of fibers in skeletal or cardiac muscle.

1. To make or to become fibrillar.
2. To be in a state of fibrillation.
3. To make fine, irregular, rapid twitching movements.
4. To undergo rapid irregular beating or uncontrolled contraction, or to make the heart or muscles undergo these activities.

Composed of minute fibers or fibrils.

1. A small, local, involuntary, muscular contraction, as a result of the spontaneous activation of single muscle cells or muscle fibers.
2. Muscular twitching involving individual muscle fibers acting without coordination.
3. The formation of fibrils or fibers.
4. A rapid chaotic beating of the heart muscles in which the affected part of the heart may stop pumping blood.
5. An abnormal bioelectric potential occurring in neuropathies and myopathies.
6. Rapid uncoordinated twitching movements that replace the normal rhythmic contraction of the heart and may cause a lack of circulation and pulse.

The difference between fibrillation and flutter is that fibrillation is not well organized while flutter is.

A protein constituent of connective tissue.

It is present in skin, ligaments, tendons, and in the aorta.

Formation of fibrils.

1. Covered with fibrils more or less evenly disposed.
2. Furnished or abounding with fine fibers.

1. The protein formed during normal blood clotting which is the essence of the clot.
2. An insoluble protein that is essential to the clotting of blood, formed from fibrinogen with the action of thrombin (key blood clot promoter).

The substance is produced in threads; after the threads have formed a close meshwork through the blood, they contract, and produce a dense, felted mass.

Fibrin is found in all inflammatory conditions within serous cavities like the pleura, peritoneum, and pericardium, and forms a thick coat upon the surface of the inflamed joints, and in the lung as a result of pneumonia.

Having the appearance of fibers; fiber-like.

1. A protein synthesized by the liver and present in blood plasma that is converted into fibrin through the action of thrombin (an enzyme that acts on fibrinogen in blood causing it to clot) and in the presence of calcium ions.
2. A soluble protein present in the blood that is activated by thrombin to form fibrin.

Fibrinogen is a clotting factor and is required to prevent major blood loss.

The formation or production of fibrin.

Producing fibrin.

1. A concentration of fibrinogen in the blood that is less than what is considered to be normal.
2. The reduction in the amount of fibrinogen in the blood, usually because of a liver disorder.

1. Resembling fibrin.
2. A homogenous acellular material similar to fibrin, found normally in the placenta and formed in connective tissue and in the walls of blood vessels in certain disease conditions.