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fibrillation
fib·ril·la·tion F0100700 (fĭb′rə-lā′shən, fī′brə-)n.1. The forming of fibers.2. a. Fine, rapid twitching of individual muscle fibers with little or no movement of the muscle as a whole.b. Rapid uncoordinated twitching movements that replace the normal rhythmic contraction of the heart and may cause a lack of circulation and pulse.fibrillation (ˌfaɪbrɪˈleɪʃən; ˌfɪb-) n1. (Physiology) a local and uncontrollable twitching of muscle fibres, esp of the heart, not affecting the entire muscle. Atrial fibrillation results in rapid and irregular heart and pulse rate. In ventricular fibrillation, the heart stops beating2. (Pathology) irregular twitchings of the muscular wall of the heart, often interfering with the normal rhythmic contractionsfi•bril•la•tion (ˌfaɪ brəˈleɪ ʃən, or, esp. for 2, ˌfɪb rə-)
n. 1. a. uncontrolled twitching or quivering of muscular fibrils. b. chaotic contractions across the atrium of the heart, causing fast and irregular ventricular activity; arrhythmia. 2. the formation of fibrils. [1830–40] fib·ril·la·tion (fĭb′rə-lā′shən) A rapid twitching of muscle fibers, as of the heart, caused by the abnormal discharge of electrical nerve impulses.fibrillationthe uncontrolled twitching of the muscular fibrils, especially of the cardiac muscles.See also: HeartfibrillationRapid, irregular contractions of the heart.Thesaurus| Noun | 1. | fibrillation - muscular twitching involving individual muscle fibers acting without coordinationtwitch, twitching, vellication - a sudden muscle spasm; especially one caused by a nervous conditionatrial fibrillation - fibrillation of the muscles of the atria of the heartventricular fibrillation - fibrillation of heart muscles resulting in interference with rhythmic contractions of the ventricles and possibly leading to cardiac arrest | | 2. | fibrillation - act or process of forming fibrilsbranching, ramification, fork, forking - the act of branching out or dividing into branches |
Translationsfibrillation
fibrillation1. a local and uncontrollable twitching of muscle fibres, esp of the heart, not affecting the entire muscle. Atrial fibrillation results in rapid and irregular heart and pulse rate. In ventricular fibrillation, the heart stops beating 2. irregular twitchings of the muscular wall of the heart, often interfering with the normal rhythmic contractions Fibrillation the destruction by mechanical action of the bonds between the tiny fibers (fibrils and microfibrils) making up the cell walls of plant fibers and the penetration by water of the space between the fibrils. Fibrillation may occur both on the surface of and within the cell wall of the fibers. With surficial fibrillation fragments of fibrils and the cell wall are separated from the fibers and form a nap on the fibers. With internal fibrillation the weakening and partial destruction of the bonds between fibrils increase the flexibility and plasticity of the fibers. Internal fibrillation enables the fibers to form bonds without losing strength. Fibrillation, the main process in beating cellulose during paper production, increases the surface of the fibers and releases the hemicelluloses inside the fibers, making it possible for the hemicelluloses to take part in the formation of bonds between fibers in the sheet of paper. The splitting of the fibrils establishes conditions for improved intertwining of fibers, increasing the mechanical strength of the paper sheet yet reducing the absorbency. Rolls, conical and disk mills, and similar devices are used for fibrillation. REFERENCEIvanov, S. N. Tekhnologiia bumagi, 2nd ed. Moscow, 1970.G. A. IVANOV fibrillation[‚fib·rə′lā·shən] (physiology) An independent, spontaneous, local twitching of muscle fibers. (textiles) A process in which yarn is extruded as a ribbon or a tape rather than as a fine filament.
See fibrillationFinancialSeeAFfibrillation
Related to fibrillation: ventricular fibrillationWords related to fibrillationnoun muscular twitching involving individual muscle fibers acting without coordinationRelated Words- twitch
- twitching
- vellication
- atrial fibrillation
- ventricular fibrillation
noun act or process of forming fibrilsRelated Words- branching
- ramification
- fork
- forking
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